feat: Add support for Workload Identity to GCS storage driver.

mentioned in commit b501d9a2

mentioned in issue #1598 (closed)

mentioned in merge request gitlab-org/charts/gitlab!4274 (merged)

mentioned in merge request omnibus-gitlab!8428 (merged)

mentioned in merge request gitlab-org/build/CNG!2394 (merged)

mentioned in merge request gitlab-org/charts/gitlab!4297 (closed)

mentioned in merge request gitlab-com/gl-infra/k8s-workloads/gitlab-com!4442 (merged)

mentioned in merge request gitlab-com/gl-infra/k8s-workloads/gitlab-com!4443 (merged)

mentioned in merge request gitlab-com/gl-infra/k8s-workloads/gitlab-com!4444 (merged)

mentioned in merge request omnibus-gitlab!8445 (closed)