feat: [gkehub]Removing support for v1alpha2 since its deprecated (#10419)

- [ ] Regenerate this pull request now. PiperOrigin-RevId: 609070692 Source-Link: https://togithub.com/googleapis/googleapis/commit/64497b3fb8db224d3817071dce8feace67b33153 Source-Link: https://togithub.com/googleapis/googleapis-gen/commit/de134a7b8cb14a029830a1812a12543a2322d58e Copy-Tag: eyJwIjoiamF2YS1na2VodWIvLk93bEJvdC55YW1sIiwiaCI6ImRlMTM0YTdiOGNiMTRhMDI5ODMwYTE4MTJhMTI1NDNhMjMyMmQ1OGUifQ==

Author: gcf-owl-bot[bot]

java-gkehub/README.md

@@ -20,7 +20,7 @@ If you are using Maven with [BOM][libraries-bom], add this to your pom.xml file:
  <dependency>
  <groupId>com.google.cloud</groupId>
  <artifactId>libraries-bom</artifactId>
- <version>26.32.0</version>
+ <version>26.33.0</version>
  <type>pom</type>
  <scope>import</scope>
  </dependency>
@@ -195,7 +195,7 @@ Java is a registered trademark of Oracle and/or its affiliates.
 [kokoro-badge-link-5]: http://storage.googleapis.com/cloud-devrel-public/java/badges/google-cloud-java/java11.html
 [stability-image]: https://img.shields.io/badge/stability-stable-green
 [maven-version-image]: https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-gkehub.svg
-[maven-version-link]: https://central.sonatype.com/artifact/com.google.cloud/google-cloud-gkehub/1.35.0
+[maven-version-link]: https://central.sonatype.com/artifact/com.google.cloud/google-cloud-gkehub/1.36.0
 [authentication]: https://github.com/googleapis/google-cloud-java#authentication
 [auth-scopes]: https://developers.google.com/identity/protocols/oauth2/scopes
 [predefined-iam-roles]: https://cloud.google.com/iam/docs/understanding-roles#predefined_roles