Use merge_db_schema for db/schema.rb conflicts

See merge request gitlab-org/gitlab-ce!22692

Add dynamic timer for delayed jobs in job list

See merge request gitlab-org/gitlab-ce!22656

This Gem can be used to automatically resolve merge conflicts in
db/schema.rb. To use it you still need to initialise the configuration,
which can be done by running:

    merge_db_schema-init --force

See https://gitlab.com/gitlab-org/release/framework/issues/42 for more
information.

add referenced merge_requests endpoint

Closes #39157

See merge request gitlab-org/gitlab-ce!21806

Fixes automatic URL formatting on Maven Page

See merge request gitlab-org/gitlab-ce!22727

Improve markdown and fix links that don't render correctly

See merge request gitlab-org/gitlab-ce!22735

Improve markdown and fix links that don't render correctly

See merge request gitlab-org/gitlab-ce!22737

Improve markdown and fix links that don't render correctly

See merge request gitlab-org/gitlab-ce!22738

Resolve "Filter by `None`/`Any` for milestone in issues/mrs API"

Closes #52382

See merge request gitlab-org/gitlab-ce!22637

Refactor SSH keys docs for Windows clients

Closes #46398 and #46399

See merge request gitlab-org/gitlab-ce!21004

Fix typos in comments and specs

See merge request gitlab-org/gitlab-ce!22683

Reduce SQL queries needed to load open merge requests

See merge request gitlab-org/gitlab-ce!22709

Drop gcp_clusters table

See merge request gitlab-org/gitlab-ce!22713

Whitelist none method from ActiveRecord::Querying

See merge request gitlab-org/gitlab-ce!22726

Prettify remaining files with differences in CE and EE

See merge request gitlab-org/gitlab-ce!22702

Rename @gitlab-org/gitlab-svgs to @gitlab/svgs

See merge request gitlab-org/gitlab-ce!22714

Fix quick links button styles

Closes #52220 and #52063

See merge request gitlab-org/gitlab-ce!22657