Update config map if already present on install

Closes #53626

See merge request gitlab-org/gitlab-ce!22969

Remove Gemfile.rails5

See merge request gitlab-org/gitlab-ce!23109

Add knative client to kubeclient library

See merge request gitlab-org/gitlab-ce!22968

Ignore environment validation failure

See merge request gitlab-org/gitlab-ce!23100

This file is not needed anymore (since we switched to rails 5 already).

Remove 'comment_on_any_diff_line' feature flag

Closes #54034

See merge request gitlab-org/gitlab-ce!23093

When an application install fails, and the user retries install, the
configmap for the application will already exists. If so, we simply
update instead of create.

Avoid Gitaly RPC errors when fetching diff stats

Closes gitaly#1393

See merge request gitlab-org/gitlab-ce!22995

Switch kubernetes:active with checking $KUBECONFIG

Closes gitlab-ee#8311

See merge request gitlab-org/gitlab-ce!22929

Don't care about order when getting awarded issues

Closes #53491

See merge request gitlab-org/gitlab-ce!23101

Fixing failing master:
https://gitlab.com/gitlab-org/gitlab-ce/-/jobs/116776474

Fix a typo in Admin: intergration -> integration

See merge request gitlab-org/gitlab-ce!23050

Add documentation on how to use structured logging

Closes #54059

See merge request gitlab-org/gitlab-ce!23031

Shortcuts documentation: Add the PC equivalent of the Mac's "Cmd" key in the WebIDE section

See merge request gitlab-org/gitlab-ce!23064

Update to new security report syntax

See merge request gitlab-org/gitlab-ce!23094

Made diff & note data consistent

See merge request gitlab-org/gitlab-ce!22950

Fix version system note

Closes #53882

See merge request gitlab-org/gitlab-ce!23030

Exclude qa and docs from Rails 4 builds

Closes #54059

See merge request gitlab-org/gitlab-ce!23091

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/54059

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/54059

Fix bug causing not all emails to show up in commit email selectbox

Closes #54045

See merge request gitlab-org/gitlab-ce!23079

Fix styling of snippet and commit discussion comments

Closes #53918

See merge request gitlab-org/gitlab-ce!23035

This caused many pain points when working with it.
Part of the data was camel cased the other snake case.
Other parts where snake case & then getting converted in components,
this conversion has the potential for leaking memory.

This changes that & makes it consistent with what it returned from the
API, snake case.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/54045

Fix vertical line alignment in discussion & diff border-radius

Closes #53975

See merge request gitlab-org/gitlab-ce!23075

Add white background to commit diff comments

See merge request gitlab-org/gitlab-ce!23078