feat(networksecurity): update the api

#### networksecurity:v1beta1

The following keys were added:
- schemas.FirewallEndpoint.properties.billingProjectId.type (Total Keys: 1)

Author: yoshi-automation

docs/dyn/networksecurity_v1beta1.organizations.locations.firewallEndpoints.html

@@ -114,6 +114,7 @@ <h3>Method Details</h3>
   &quot;associatedNetworks&quot;: [ # Output only. List of networks that are associated with this endpoint in the local zone. This is a projection of the FirewallEndpointAssociations pointing at this endpoint. A network will only appear in this list after traffic routing is fully configured. Format: projects/{project}/global/networks/{name}.
     &quot;A String&quot;,
   ],
+  &quot;billingProjectId&quot;: &quot;A String&quot;, # Optional. Project to bill on endpoint uptime usage.
   &quot;createTime&quot;: &quot;A String&quot;, # Output only. Create time stamp
   &quot;labels&quot;: { # Optional. Labels as key value pairs
     &quot;a_key&quot;: &quot;A String&quot;,
@@ -209,6 +210,7 @@ <h3>Method Details</h3>
   &quot;associatedNetworks&quot;: [ # Output only. List of networks that are associated with this endpoint in the local zone. This is a projection of the FirewallEndpointAssociations pointing at this endpoint. A network will only appear in this list after traffic routing is fully configured. Format: projects/{project}/global/networks/{name}.
     &quot;A String&quot;,
   ],
+  &quot;billingProjectId&quot;: &quot;A String&quot;, # Optional. Project to bill on endpoint uptime usage.
   &quot;createTime&quot;: &quot;A String&quot;, # Output only. Create time stamp
   &quot;labels&quot;: { # Optional. Labels as key value pairs
     &quot;a_key&quot;: &quot;A String&quot;,
@@ -244,6 +246,7 @@ <h3>Method Details</h3>
       &quot;associatedNetworks&quot;: [ # Output only. List of networks that are associated with this endpoint in the local zone. This is a projection of the FirewallEndpointAssociations pointing at this endpoint. A network will only appear in this list after traffic routing is fully configured. Format: projects/{project}/global/networks/{name}.
         &quot;A String&quot;,
       ],
+      &quot;billingProjectId&quot;: &quot;A String&quot;, # Optional. Project to bill on endpoint uptime usage.
       &quot;createTime&quot;: &quot;A String&quot;, # Output only. Create time stamp
       &quot;labels&quot;: { # Optional. Labels as key value pairs
         &quot;a_key&quot;: &quot;A String&quot;,
@@ -288,6 +291,7 @@ <h3>Method Details</h3>
   &quot;associatedNetworks&quot;: [ # Output only. List of networks that are associated with this endpoint in the local zone. This is a projection of the FirewallEndpointAssociations pointing at this endpoint. A network will only appear in this list after traffic routing is fully configured. Format: projects/{project}/global/networks/{name}.
     &quot;A String&quot;,
   ],
+  &quot;billingProjectId&quot;: &quot;A String&quot;, # Optional. Project to bill on endpoint uptime usage.
   &quot;createTime&quot;: &quot;A String&quot;, # Output only. Create time stamp
   &quot;labels&quot;: { # Optional. Labels as key value pairs
     &quot;a_key&quot;: &quot;A String&quot;,

googleapiclient/discovery_cache/documents/networksecurity.v1.json

@@ -2474,7 +2474,7 @@
       }
     }
   },
-  "revision": "20230911",
+  "revision": "20230918",
   "rootUrl": "https://networksecurity.googleapis.com/",
   "schemas": {
     "AddAddressGroupItemsRequest": {

googleapiclient/discovery_cache/documents/networksecurity.v1beta1.json

@@ -3162,7 +3162,7 @@
       }
     }
   },
-  "revision": "20230911",
+  "revision": "20230918",
   "rootUrl": "https://networksecurity.googleapis.com/",
   "schemas": {
     "AddAddressGroupItemsRequest": {
@@ -3458,6 +3458,10 @@
           "readOnly": true,
           "type": "array"
         },
+        "billingProjectId": {
+          "description": "Optional. Project to bill on endpoint uptime usage.",
+          "type": "string"
+        },
         "createTime": {
           "description": "Output only. Create time stamp",
           "format": "google-datetime",