[DT-400-actions]: Bump docker/login-action from 3 to 4

Bumps [docker/login-action](https://github.com/docker/login-action) from 3 to 4.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](docker/login-action@v3...v4)

---
updated-dependencies:
- dependency-name: docker/login-action
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/build.yaml

@@ -60,7 +60,7 @@ jobs:
         service_account: 'dsp-artifact-registry-push@dsp-artifact-registry.iam.gserviceaccount.com'
     # authenticate to GAR docker repo
     - name: Docker Login
-      uses: 'docker/login-action@v3'
+      uses: 'docker/login-action@v4'
       with:
         registry: 'us-central1-docker.pkg.dev'
         username: 'oauth2accesstoken'