feat(integrations): update the api

#### integrations:v1alpha

The following keys were added:
- resources.projects.resources.locations.resources.integrations.methods.delete (Total Keys: 11)
- resources.projects.resources.locations.resources.integrations.resources.versions.methods.delete (Total Keys: 11)
- resources.projects.resources.locations.resources.integrations.resources.versions.methods.download (Total Keys: 13)
- resources.projects.resources.locations.resources.integrations.resources.versions.methods.unpublish (Total Keys: 12)
- resources.projects.resources.locations.resources.integrations.resources.versions.methods.upload (Total Keys: 12)
- resources.projects.resources.locations.resources.products.resources.integrations.resources.versions.methods.delete (Total Keys: 11)
- resources.projects.resources.locations.resources.products.resources.integrations.resources.versions.methods.unpublish (Total Keys: 12)
- schemas.GoogleCloudIntegrationsV1alphaUnpublishIntegrationVersionRequest (Total Keys: 2)

docs/dyn/integrations_v1alpha.projects.locations.integrations.html

@@ -87,6 +87,9 @@ <h2>Instance Methods</h2>
 <p class="toc_element">
   <code><a href="#close">close()</a></code></p>
 <p class="firstline">Close httplib2 connections.</p>
+<p class="toc_element">
+  <code><a href="#delete">delete(name, x__xgafv=None)</a></code></p>
+<p class="firstline">Delete the selected integration and all versions inside</p>
 <p class="toc_element">
   <code><a href="#execute">execute(name, body=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Executes integrations synchronously by passing the trigger id in the request body. The request is not returned until the requested executions are either fulfilled or experienced an error. If the integration name is not specified (passing `-`), all of the associated integration under the given trigger_id will be executed. Otherwise only the specified integration for the given `trigger_id` is executed. This is helpful for execution the integration from UI.</p>
@@ -105,6 +108,24 @@ <h3>Method Details</h3>
   <pre>Close httplib2 connections.</pre>
 </div>
 
+<div class="method">
+    <code class="details" id="delete">delete(name, x__xgafv=None)</code>
+  <pre>Delete the selected integration and all versions inside
+
+Args:
+  name: string, Required. The location resource of the request. (required)
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+Returns:
+  An object of the form:
+
+    { # A generic empty message that you can re-use to avoid defining duplicated empty messages in your APIs. A typical example is to use it as the request or the response type of an API method. For instance: service Foo { rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty); }
+}</pre>
+</div>
+
 <div class="method">
     <code class="details" id="execute">execute(name, body=None, x__xgafv=None)</code>
   <pre>Executes integrations synchronously by passing the trigger id in the request body. The request is not returned until the requested executions are either fulfilled or experienced an error. If the integration name is not specified (passing `-`), all of the associated integration under the given trigger_id will be executed. Otherwise only the specified integration for the given `trigger_id` is executed. This is helpful for execution the integration from UI.