feat(apikeys): update the api

#### apikeys:v2

The following keys were added:
- schemas.V2Key.properties.annotations (Total Keys: 2)

docs/dyn/apikeys_v2.projects.locations.keys.html

@@ -162,6 +162,9 @@ <h3>Method Details</h3>
     The object takes the form of:
 
 { # The representation of a key managed by the API Keys API.
+  &quot;annotations&quot;: { # Annotations is an unstructured key-value map stored with a policy that may be set by external tools to store and retrieve arbitrary metadata. They are not queryable and should be preserved when modifying objects.
+    &quot;a_key&quot;: &quot;A String&quot;,
+  },
   &quot;createTime&quot;: &quot;A String&quot;, # Output only. A timestamp identifying the time this key was originally created.
   &quot;deleteTime&quot;: &quot;A String&quot;, # Output only. A timestamp when this key was deleted. If the resource is not deleted, this must be empty.
   &quot;displayName&quot;: &quot;A String&quot;, # Human-readable display name of this key that you can modify. The maximum length is 63 characters.
@@ -286,6 +289,9 @@ <h3>Method Details</h3>
   An object of the form:
 
     { # The representation of a key managed by the API Keys API.
+  &quot;annotations&quot;: { # Annotations is an unstructured key-value map stored with a policy that may be set by external tools to store and retrieve arbitrary metadata. They are not queryable and should be preserved when modifying objects.
+    &quot;a_key&quot;: &quot;A String&quot;,
+  },
   &quot;createTime&quot;: &quot;A String&quot;, # Output only. A timestamp identifying the time this key was originally created.
   &quot;deleteTime&quot;: &quot;A String&quot;, # Output only. A timestamp when this key was deleted. If the resource is not deleted, this must be empty.
   &quot;displayName&quot;: &quot;A String&quot;, # Human-readable display name of this key that you can modify. The maximum length is 63 characters.
@@ -370,6 +376,9 @@ <h3>Method Details</h3>
     { # Response message for `ListKeys` method.
   &quot;keys&quot;: [ # A list of API keys.
     { # The representation of a key managed by the API Keys API.
+      &quot;annotations&quot;: { # Annotations is an unstructured key-value map stored with a policy that may be set by external tools to store and retrieve arbitrary metadata. They are not queryable and should be preserved when modifying objects.
+        &quot;a_key&quot;: &quot;A String&quot;,
+      },
       &quot;createTime&quot;: &quot;A String&quot;, # Output only. A timestamp identifying the time this key was originally created.
       &quot;deleteTime&quot;: &quot;A String&quot;, # Output only. A timestamp when this key was deleted. If the resource is not deleted, this must be empty.
       &quot;displayName&quot;: &quot;A String&quot;, # Human-readable display name of this key that you can modify. The maximum length is 63 characters.
@@ -441,6 +450,9 @@ <h3>Method Details</h3>
     The object takes the form of:
 
 { # The representation of a key managed by the API Keys API.
+  &quot;annotations&quot;: { # Annotations is an unstructured key-value map stored with a policy that may be set by external tools to store and retrieve arbitrary metadata. They are not queryable and should be preserved when modifying objects.
+    &quot;a_key&quot;: &quot;A String&quot;,
+  },
   &quot;createTime&quot;: &quot;A String&quot;, # Output only. A timestamp identifying the time this key was originally created.
   &quot;deleteTime&quot;: &quot;A String&quot;, # Output only. A timestamp when this key was deleted. If the resource is not deleted, this must be empty.
   &quot;displayName&quot;: &quot;A String&quot;, # Human-readable display name of this key that you can modify. The maximum length is 63 characters.

googleapiclient/discovery_cache/documents/apikeys.v2.json

@@ -429,7 +429,7 @@
       }
     }
   },
-  "revision": "20220312",
+  "revision": "20220319",
   "rootUrl": "https://apikeys.googleapis.com/",
   "schemas": {
     "Operation": {
@@ -595,6 +595,13 @@
       "description": "The representation of a key managed by the API Keys API.",
       "id": "V2Key",
       "properties": {
+        "annotations": {
+          "additionalProperties": {
+            "type": "string"
+          },
+          "description": "Annotations is an unstructured key-value map stored with a policy that may be set by external tools to store and retrieve arbitrary metadata. They are not queryable and should be preserved when modifying objects.",
+          "type": "object"
+        },
         "createTime": {
           "description": "Output only. A timestamp identifying the time this key was originally created.",
           "format": "google-datetime",