chore(release): 2.4.0 [skip ci]

# [2.4.0](https://gitlab.com/to-be-continuous/docker/compare/2.3.3...2.4.0) (2022-04-27)

### Features

* add image digest support ([57998b26](https://gitlab.com/to-be-continuous/docker/commit/57998b26c37086faee0b5524d31917f4f4a3ce53))