Bump google-github-actions/get-gke-credentials from 2.0.0 to 2.1.0

Bumps [google-github-actions/get-gke-credentials](https://github.com/google-github-actions/get-gke-credentials) from 2.0.0 to 2.1.0.
- [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@v2.0.0...v2.1.0)

---
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] <[email protected]>

Author: dependabot[bot]

.github/workflows/deploy.yml

@@ -27,7 +27,7 @@ jobs:
           create_credentials_file: true
 
       - id: get-gke-credentials
-        uses: google-github-actions/get-gke-credentials@v2.0.0
+        uses: google-github-actions/get-gke-credentials@v2.1.0
         with:
           cluster_name: dg
           location: us-central1-c