Upgrade mailroom to v0.0.8

See merge request gitlab-org/build/CNG!572

This may help with the process not terminating properly:
https://gitlab.com/gitlab-org/charts/gitlab/-/issues/2440

Login with dependency proxy

See merge request gitlab-org/build/CNG!573

Bump the ubi images to use UBI 8.3

Closes gitlab-org/charts/gitlab#2451

See merge request gitlab-org/build/CNG!568

Add GitLab Pages to the docker-compose dev environment

Closes gitlab-org/charts/gitlab#2438

See merge request gitlab-org/build/CNG!560

Add OpenShift labels to UBI8 images

Closes gitlab-org/gl-openshift/gitlab-operator#47

See merge request gitlab-org/build/CNG!554

The source label is not required for Red Hat certification, but it
has been left in place as metadata to point to the repo location
where the build files are located.

Update redis/redis-rb from 4.2.4 to 4.2.5

See merge request gitlab-org/build/CNG!565

Revert "Merge branch 'workhorse-use-gitlab-logger' into 'master'"

See merge request gitlab-org/build/CNG!567

This reverts merge request !559

Use GitLab Logger to handle GitLab Shell logs

Closes gitlab-org/charts/gitlab#2429

See merge request gitlab-org/build/CNG!559