Update ruby to 2.7.5

See merge request gitlab-org/security/charts/components/images!8

Prepare 14.4.2 release

See merge request gitlab-org/build/CNG!818

See https://gitlab.com/gitlab-org/build/CNG/-/merge_requests/808

Changelog: fixed

Updates MailRoom version to 0.0.14

See merge request gitlab-org/build/CNG!803

Release-tools can't handle the divergence between GitLab and the Charts,
so we're restoring mailroom to the correct version.

Bug in release tools is fixed by
https://gitlab.com/gitlab-org/release-tools/-/merge_requests/1592

This works around the io-wait Ruby 2.7 dependency issue described in
https://github.com/ruby/net-imap/issues/24.

Relates to
https://gitlab.com/gitlab-org/gitlab-mail_room/-/merge_requests/35

Add a Danger message if upgrading Go Version

See merge request gitlab-org/build/CNG!782

Use gitlab custom bundler setup

See merge request gitlab-org/build/CNG!795

Implement / document Gomplate patterns

Closes gitlab-org/charts/gitlab#2896

See merge request gitlab-org/build/CNG!786

Adds support for changing the gemfile location

Bump container registry to v3.12.0

See merge request gitlab-org/build/CNG!792

Update s3tools/s3cmd from 2.1.0 to 2.2.0

Closes gitlab-org/charts/gitlab#2923

See merge request gitlab-org/build/CNG!772

Rails: remove excess from /srv/gitlab

See merge request gitlab-org/build/CNG!763