Clean up the GPG docs and mention push rules

Closes #42363

See merge request gitlab-org/gitlab-ce!24046

Merge branch '55628-artifacts-from-a-job-defined-after-a-parallel-job-are-not-downloaded' into 'master'

Resolve "Artifacts from a job defined after a `parallel` job are NOT downloaded"

Closes #55628

See merge request gitlab-org/gitlab-ce!24273

Add private runner warnings

Closes #53032

See merge request gitlab-org/gitlab-ce!24274

Fix broken templated "Too many changes to show" text

Closes #56138

See merge request gitlab-org/gitlab-ce!24282

Upgrade webpack dependencies

See merge request gitlab-org/gitlab-ce!24253

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/23230
broke the external string in 11.6. This fixes that and
adds a spec.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/56138

Update string structure for group runners

See merge request gitlab-org/gitlab-ce!24187

Bump CarrierWave to 1.3.1

Closes #56096

See merge request gitlab-org/gitlab-ce!24280

Service for calling Sentry issues api

See merge request gitlab-org/gitlab-ce!24126

This avoids an extra HEAD request when making request for auth URL.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/56096

Upgrade babel to v7.2

See merge request gitlab-org/gitlab-ce!24259

Enable caching for records which primary key is not `id`

See merge request gitlab-org/gitlab-ce!24245

First pass at updated profile empty state

See merge request gitlab-org/gitlab-ce!23973

Add SSE-C key configuration option for Amazon S3 remote backups

See merge request gitlab-org/gitlab-ce!23797

Adds skeleton loading for releases

Closes #55242

See merge request gitlab-org/gitlab-ce!24264

Resolve "Inconsistent spacing between note and user avatar in discussions"

Closes #55958

See merge request gitlab-org/gitlab-ce!24197

Resolve "Fix translation of "in" in job details sidebar"

Closes #56036

See merge request gitlab-org/gitlab-ce!24192

Revert update to '@vue/component-compiler-utils'

See merge request gitlab-org/gitlab-ce!24266

This reverts to 2.2.0, which has node@6 compatibility

Upgraded Vue and related libraries

See merge request gitlab-org/gitlab-ce!24159

In releases page, instead of rendering
a loading icon, it now renders the skeleton loading

Allow QA to run in remote grid environments

Closes #55051

See merge request gitlab-org/gitlab-ce!23708

Fix broken markdown and other lint problems

See merge request gitlab-org/gitlab-ce!24208

Fixes doubles tooltips on note awards

Closes #55483

See merge request gitlab-org/gitlab-ce!24261

Resolve "Coverage is always 100%"

Closes #56040

See merge request gitlab-org/gitlab-ce!24231

Run the cloud-image trigger job for tags, even if the tests fail

See merge request gitlab-org/gitlab-ce!24254

Use monospace font for registry table tag id and tag name

Closes #40956

See merge request gitlab-org/gitlab-ce!24205