chore: regenerate agentidentity (#13822)

Fixes #13720

Author: JoeWang1127

java-agentidentity/.repo-metadata.json

@@ -11,6 +11,5 @@
   "repo_short": "java-agentidentity",
   "distribution_name": "com.google.cloud:google-cloud-agentidentity",
   "api_id": "agentidentity.googleapis.com",
-  "library_type": "GAPIC_AUTO",
-  "requires_billing": true
+  "library_type": "GAPIC_AUTO"
 }

java-agentidentity/README.md

@@ -14,7 +14,6 @@ Java idiomatic client for [Agent Identity][product-docs].
 
 ## Quickstart
 
-
 If you are using Maven with [BOM][libraries-bom], add this to your pom.xml file:
 
 ```xml
@@ -49,6 +48,14 @@ If you are using Maven without the BOM, add this to your dependencies:
 </dependency>
 ```
 
+If you are using Gradle 5.x or later, add this to your dependencies:
+
+```Groovy
+implementation platform('com.google.cloud:libraries-bom:26.83.0')
+
+implementation 'com.google.cloud:google-cloud-agentidentity'
+```
+
 If you are using Gradle without BOM, add this to your dependencies:
 
 ```Groovy