* Update installed packages in Docker container. ([cc4ad24](https://git.griefed.de/prosper/gitlab-ci-cd/commit/cc4ad2435aff7a959e70306a836810bd40802bce))
* Use docker proxy to reduce traffic ([0c8cc80](https://git.griefed.de/prosper/gitlab-ci-cd/commit/0c8cc80b7257ff3ef02ae9ce836fc58fe4b0ff62))
### Other
***deps:** update ghcr.io/griefed/gitlab-ci-cd docker tag to v2.2.12 ([c20675c](https://git.griefed.de/prosper/gitlab-ci-cd/commit/c20675c51082a6fdf6a720443021321d66206e76))