GoogleCloudPlatform/github-actions
This action configures the Google Cloud SDK in the environment for use in actions. The Google Cloud SDK includes both the gcloud and gsutil binaries. It does the following: Downloads a version of the Google Cloud SDK according to the specified version input, as well as the environment OS and architecture.
https://github.com/GoogleCloudPlatform/github-actions/blob/master/setup-gcloud/README.md