Bump google-github-actions/get-gke-credentials from 2.1.0 to 2.3.0

Bumps [google-github-actions/get-gke-credentials](https://github.com/google-github-actions/get-gke-credentials) from 2.1.0 to 2.3.0.
- [Release notes](https://github.com/google-github-actions/get-gke-credentials/releases)
- [Changelog](https://github.com/google-github-actions/get-gke-credentials/blob/main/CHANGELOG.md)
- [Commits](google-github-actions/get-gke-credentials@v2.1.0...v2.3.0)

---
updated-dependencies:
- dependency-name: google-github-actions/get-gke-credentials
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/Deploy-GKE.yml

@@ -56,7 +56,7 @@ jobs:
         export_default_credentials: true 
 
     # Get the GKE credentials so we can deploy to the cluster
-    - uses: google-github-actions/get-gke-credentials@v2.1.0
+    - uses: google-github-actions/get-gke-credentials@v2.3.0
       with:
         cluster_name: ${{ env.GKE_CLUSTER }}
         location: ${{ env.GKE_ZONE }}