Bazel cache bucket
This change set switches the Bazel remote build cache to an IaC-managed bucket from https://gitlab.com/gitlab-org/ci-cd/deploy-stage/environments-group/infra/gitlab-agent.
This project manages the bucket, SA and key to access it and creates the necessary CI/CD variables in this project.
Verification
Have a look at the pipeline runtimes, where the first one took around ~14m populating the cache and subsequent pipeline runs only run for ~4m.
Refs https://gitlab.com/gitlab-org/cluster-integration/gitlab-agent/-/issues/453
Edited by Timo Furrer