build(deps): bump google-github-actions/auth from 2.1.3 to 2.1.5

Bumps [google-github-actions/auth](https://github.com/google-github-actions/auth) from 2.1.3 to 2.1.5.
- [Release notes](https://github.com/google-github-actions/auth/releases)
- [Changelog](https://github.com/google-github-actions/auth/blob/main/CHANGELOG.md)
- [Commits](google-github-actions/auth@71fee32...62cf5bd)

---
updated-dependencies:
- dependency-name: google-github-actions/auth
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/release.yml

@@ -264,7 +264,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
       - name: Log into GCP
-        uses: "google-github-actions/auth@71fee32a0bb7e97b4d33d548e7d957010649d8fa"
+        uses: "google-github-actions/auth@62cf5bd3e4211a0a0b51f2c6d6a37129d828611d"
         with:
           credentials_json: ${{ secrets.LINKERD_SITE_TOKEN }}
       - name: Edge Helm chart creation and upload