chore(release): 4.0.0 [skip ci]

# [4.0.0](https://gitlab.com/to-be-continuous/gcloud/compare/3.2.0...4.0.0) (2023-08-28)

### Features

* **oidc:** OIDC authentication support now requires  explicit configuration (see doc) ([2e8032a3](https://gitlab.com/to-be-continuous/gcloud/commit/2e8032a310720fb66a46003aaca6d61d365639d3))
* support ID tokens instead of CI_JOB_JWT ([277a8754](https://gitlab.com/to-be-continuous/gcloud/commit/277a87549c91f14979ca943eaf7a556ae085d9ad))

### BREAKING CHANGES

* **oidc:** OIDC authentication support now requires explicit configuration (see doc)