Bump docker/login-action from 2 to 3

Bumps [docker/login-action](https://github.com/docker/login-action) from 2 to 3.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](docker/login-action@v2...v3)

---
updated-dependencies:
- dependency-name: docker/login-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/push.yml

@@ -64,7 +64,7 @@ jobs:
         verbose: true
 
     # Use the JSON key in secret to login gcr.io
-    - uses: 'docker/login-action@v2'
+    - uses: 'docker/login-action@v3'
       with:
         registry: 'gcr.io' # or REGION.docker.pkg.dev
         username: '_json_key'