Provides GitHub Workflow

• Build multi-platform docker image files: dockerx-build-push.yml

• Optimize build speed using the cache plugin: java/README.md

  java/.github/workflows/build-java.yml

  java/.github/workflows/build-java-sonarqube.yml

• gke-workload-identity

• GitHub Actions /Using workflows / Cache dependencies / Caching dependencies to speed up workflows

• https://github.com/actions/cache

• https://github.com/actions/cache/blob/main/examples.md#java---gradle