feat(alloydb): update the api

#### alloydb:v1alpha

The following keys were deleted:
- schemas.PscInstanceConfig.properties.allowedConsumerNetworks (Total Keys: 2)
- schemas.PscInstanceConfig.properties.outgoingServiceAttachmentLinks (Total Keys: 2)
- schemas.PscInstanceConfig.properties.pscEnabled.type (Total Keys: 1)
- schemas.PscInstanceConfig.properties.pscInterfaceConfigs (Total Keys: 2)
- schemas.PscInterfaceConfig (Total Keys: 5)

The following keys were added:
- schemas.Cluster.properties.maintenanceSchedule (Total Keys: 2)
- schemas.MaintenanceSchedule (Total Keys: 5)

#### alloydb:v1beta

The following keys were deleted:
- schemas.PscInstanceConfig.properties.allowedConsumerNetworks (Total Keys: 2)
- schemas.PscInstanceConfig.properties.outgoingServiceAttachmentLinks (Total Keys: 2)
- schemas.PscInstanceConfig.properties.pscEnabled.type (Total Keys: 1)
- schemas.PscInstanceConfig.properties.pscInterfaceConfigs (Total Keys: 2)
- schemas.PscInterfaceConfig (Total Keys: 5)

The following keys were added:
- schemas.Cluster.properties.maintenanceSchedule (Total Keys: 2)
- schemas.MaintenanceSchedule (Total Keys: 5)

docs/dyn/alloydb_v1alpha.projects.locations.clusters.html

@@ -212,6 +212,9 @@ <h3>Method Details</h3>
   &quot;labels&quot;: { # Labels as key value pairs
     &quot;a_key&quot;: &quot;A String&quot;,
   },
+  &quot;maintenanceSchedule&quot;: { # MaintenanceSchedule stores the maintenance schedule generated from the MaintenanceUpdatePolicy, once a maintenance rollout is triggered, if MaintenanceWindow is set, and if there is no conflicting DenyPeriod. The schedule is cleared once the update takes place. This field cannot be manually changed; modify the MaintenanceUpdatePolicy instead. # Output only. The maintenance schedule for the cluster, generated for a specific rollout if a maintenance window is set.
+    &quot;startTime&quot;: &quot;A String&quot;, # Output only. The scheduled start time for the maintenance.
+  },
   &quot;maintenanceUpdatePolicy&quot;: { # MaintenanceUpdatePolicy defines the policy for system updates. # Optional. The maintenance update policy determines when to allow or deny updates.
     &quot;denyMaintenancePeriods&quot;: [ # Periods to deny maintenance. Currently limited to 1.
       { # DenyMaintenancePeriod definition. Excepting emergencies, maintenance will not be scheduled to start within this deny period. The start_date must be less than the end_date.
@@ -403,6 +406,9 @@ <h3>Method Details</h3>
   &quot;labels&quot;: { # Labels as key value pairs
     &quot;a_key&quot;: &quot;A String&quot;,
   },
+  &quot;maintenanceSchedule&quot;: { # MaintenanceSchedule stores the maintenance schedule generated from the MaintenanceUpdatePolicy, once a maintenance rollout is triggered, if MaintenanceWindow is set, and if there is no conflicting DenyPeriod. The schedule is cleared once the update takes place. This field cannot be manually changed; modify the MaintenanceUpdatePolicy instead. # Output only. The maintenance schedule for the cluster, generated for a specific rollout if a maintenance window is set.
+    &quot;startTime&quot;: &quot;A String&quot;, # Output only. The scheduled start time for the maintenance.
+  },
   &quot;maintenanceUpdatePolicy&quot;: { # MaintenanceUpdatePolicy defines the policy for system updates. # Optional. The maintenance update policy determines when to allow or deny updates.
     &quot;denyMaintenancePeriods&quot;: [ # Periods to deny maintenance. Currently limited to 1.
       { # DenyMaintenancePeriod definition. Excepting emergencies, maintenance will not be scheduled to start within this deny period. The start_date must be less than the end_date.
@@ -643,6 +649,9 @@ <h3>Method Details</h3>
   &quot;labels&quot;: { # Labels as key value pairs
     &quot;a_key&quot;: &quot;A String&quot;,
   },
+  &quot;maintenanceSchedule&quot;: { # MaintenanceSchedule stores the maintenance schedule generated from the MaintenanceUpdatePolicy, once a maintenance rollout is triggered, if MaintenanceWindow is set, and if there is no conflicting DenyPeriod. The schedule is cleared once the update takes place. This field cannot be manually changed; modify the MaintenanceUpdatePolicy instead. # Output only. The maintenance schedule for the cluster, generated for a specific rollout if a maintenance window is set.
+    &quot;startTime&quot;: &quot;A String&quot;, # Output only. The scheduled start time for the maintenance.
+  },
   &quot;maintenanceUpdatePolicy&quot;: { # MaintenanceUpdatePolicy defines the policy for system updates. # Optional. The maintenance update policy determines when to allow or deny updates.
     &quot;denyMaintenancePeriods&quot;: [ # Periods to deny maintenance. Currently limited to 1.
       { # DenyMaintenancePeriod definition. Excepting emergencies, maintenance will not be scheduled to start within this deny period. The start_date must be less than the end_date.
@@ -814,6 +823,9 @@ <h3>Method Details</h3>
       &quot;labels&quot;: { # Labels as key value pairs
         &quot;a_key&quot;: &quot;A String&quot;,
       },
+      &quot;maintenanceSchedule&quot;: { # MaintenanceSchedule stores the maintenance schedule generated from the MaintenanceUpdatePolicy, once a maintenance rollout is triggered, if MaintenanceWindow is set, and if there is no conflicting DenyPeriod. The schedule is cleared once the update takes place. This field cannot be manually changed; modify the MaintenanceUpdatePolicy instead. # Output only. The maintenance schedule for the cluster, generated for a specific rollout if a maintenance window is set.
+        &quot;startTime&quot;: &quot;A String&quot;, # Output only. The scheduled start time for the maintenance.
+      },
       &quot;maintenanceUpdatePolicy&quot;: { # MaintenanceUpdatePolicy defines the policy for system updates. # Optional. The maintenance update policy determines when to allow or deny updates.
         &quot;denyMaintenancePeriods&quot;: [ # Periods to deny maintenance. Currently limited to 1.
           { # DenyMaintenancePeriod definition. Excepting emergencies, maintenance will not be scheduled to start within this deny period. The start_date must be less than the end_date.
@@ -994,6 +1006,9 @@ <h3>Method Details</h3>
   &quot;labels&quot;: { # Labels as key value pairs
     &quot;a_key&quot;: &quot;A String&quot;,
   },
+  &quot;maintenanceSchedule&quot;: { # MaintenanceSchedule stores the maintenance schedule generated from the MaintenanceUpdatePolicy, once a maintenance rollout is triggered, if MaintenanceWindow is set, and if there is no conflicting DenyPeriod. The schedule is cleared once the update takes place. This field cannot be manually changed; modify the MaintenanceUpdatePolicy instead. # Output only. The maintenance schedule for the cluster, generated for a specific rollout if a maintenance window is set.
+    &quot;startTime&quot;: &quot;A String&quot;, # Output only. The scheduled start time for the maintenance.
+  },
   &quot;maintenanceUpdatePolicy&quot;: { # MaintenanceUpdatePolicy defines the policy for system updates. # Optional. The maintenance update policy determines when to allow or deny updates.
     &quot;denyMaintenancePeriods&quot;: [ # Periods to deny maintenance. Currently limited to 1.
       { # DenyMaintenancePeriod definition. Excepting emergencies, maintenance will not be scheduled to start within this deny period. The start_date must be less than the end_date.
@@ -1235,6 +1250,9 @@ <h3>Method Details</h3>
     &quot;labels&quot;: { # Labels as key value pairs
       &quot;a_key&quot;: &quot;A String&quot;,
     },
+    &quot;maintenanceSchedule&quot;: { # MaintenanceSchedule stores the maintenance schedule generated from the MaintenanceUpdatePolicy, once a maintenance rollout is triggered, if MaintenanceWindow is set, and if there is no conflicting DenyPeriod. The schedule is cleared once the update takes place. This field cannot be manually changed; modify the MaintenanceUpdatePolicy instead. # Output only. The maintenance schedule for the cluster, generated for a specific rollout if a maintenance window is set.
+      &quot;startTime&quot;: &quot;A String&quot;, # Output only. The scheduled start time for the maintenance.
+    },
     &quot;maintenanceUpdatePolicy&quot;: { # MaintenanceUpdatePolicy defines the policy for system updates. # Optional. The maintenance update policy determines when to allow or deny updates.
       &quot;denyMaintenancePeriods&quot;: [ # Periods to deny maintenance. Currently limited to 1.
         { # DenyMaintenancePeriod definition. Excepting emergencies, maintenance will not be scheduled to start within this deny period. The start_date must be less than the end_date.