feat(firebaseappcheck): update the api

#### firebaseappcheck:v1beta

The following keys were added:
- resources.projects.resources.services.resources.resourcePolicies.methods.batchUpdate (Total Keys: 12)
- resources.projects.resources.services.resources.resourcePolicies.methods.create (Total Keys: 12)
- resources.projects.resources.services.resources.resourcePolicies.methods.delete (Total Keys: 11)
- resources.projects.resources.services.resources.resourcePolicies.methods.get (Total Keys: 11)
- resources.projects.resources.services.resources.resourcePolicies.methods.list (Total Keys: 16)
- resources.projects.resources.services.resources.resourcePolicies.methods.patch (Total Keys: 15)
- schemas.GoogleFirebaseAppcheckV1betaBatchUpdateResourcePoliciesRequest (Total Keys: 6)
- schemas.GoogleFirebaseAppcheckV1betaBatchUpdateResourcePoliciesResponse (Total Keys: 4)
- schemas.GoogleFirebaseAppcheckV1betaListResourcePoliciesResponse (Total Keys: 5)
- schemas.GoogleFirebaseAppcheckV1betaResourcePolicy (Total Keys: 8)
- schemas.GoogleFirebaseAppcheckV1betaUpdateResourcePolicyRequest (Total Keys: 5)

docs/dyn/firebaseappcheck_v1beta.projects.services.html

@@ -74,6 +74,11 @@
 
 <h1><a href="firebaseappcheck_v1beta.html">Firebase App Check API</a> . <a href="firebaseappcheck_v1beta.projects.html">projects</a> . <a href="firebaseappcheck_v1beta.projects.services.html">services</a></h1>
 <h2>Instance Methods</h2>
+<p class="toc_element">
+  <code><a href="firebaseappcheck_v1beta.projects.services.resourcePolicies.html">resourcePolicies()</a></code>
+</p>
+<p class="firstline">Returns the resourcePolicies Resource.</p>
+
 <p class="toc_element">
   <code><a href="#batchUpdate">batchUpdate(parent, body=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Atomically updates the specified Service configurations.</p>