Also adds specs and fixes existing specs

Allow single tasks to be updated quickly

Upgrade gitaly to 1.18.0

See merge request gitlab-org/gitlab-ce!24981

Resolve "Diff file headers on 'Compare' not quite right"

Closes #56938

See merge request gitlab-org/gitlab-ce!24783

Send project name with Gitaly repository requests

Closes gitaly#1394

See merge request gitlab-org/gitlab-ce!23373

Fix #44332 - Add support for profile and email

Closes #44332

See merge request gitlab-org/gitlab-ce!24335

Add list_projects endpoint to error tracking

See merge request gitlab-org/gitlab-ce!24700

Add Go guidelines to developer docs

Closes #54494

See merge request gitlab-org/gitlab-ce!24661

Use special classes when is_compare, similar to is_commit. Default
expectation is diff is being viewed in MR

Fix incorrect stable branch name for templates

See merge request gitlab-org/gitlab-ce!24973

In https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/24962 the
stable branches were incorrectly changed to `stable-X-Y`. This commit
fixes this so we correctly use `X-Y-stable`.

Add service to get sentry projects list

See merge request gitlab-org/gitlab-ce!24681

Avoid race conditions when creating GpgSignature

Closes #57304

See merge request gitlab-org/gitlab-ce!24939

Add UI for "Group Overview default" preference in User Settings

See merge request gitlab-org/gitlab-ce!24761

Bump required Ruby version in install doc

Closes #57350

See merge request gitlab-org/gitlab-ce!24966

Remove requirement to target security branches

See merge request gitlab-org/gitlab-ce!24962

Revert "Convert noteable_note_spec.js to Vue test utils"

See merge request gitlab-org/gitlab-ce!24961

This avoids race conditions when creating GpgSignature.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/57350

Update Workhorse to v8.3.0

See merge request gitlab-org/gitlab-ce!24959

This removes the requirement and any mention of targeting security
branches when working on security releases. The release process
documentation changes for these CE changes can be found in merge request
https://gitlab.com/gitlab-org/release/docs/merge_requests/97.

The proposal to remove security branches was approved in
https://gitlab.com/gitlab-org/release/framework/issues/165#note_138139016.

Reduce Bundle Size by lazy loading markdown-it

Closes #56989

See merge request gitlab-org/gitlab-ce!24763

Allow custom squash commit messages

See merge request gitlab-org/gitlab-ce!24518

Merge branch '43681-display-last-activity-and-created-at-datetimes-for-users-in-admin-users' into 'master'

Resolve "Display last activity and created at datetimes for users"

Closes #43681

See merge request gitlab-org/gitlab-ce!24181

Backport for gitlab-ee!9239

See merge request gitlab-org/gitlab-ce!24818

Update version column on updated and installed

See merge request gitlab-org/gitlab-ce!24810

[master] Markdown of release notes leaks confidential issue titles and MR titles to any users

See merge request gitlab/gitlabhq!2869

Fix comment typo in feature proposal issue template

See merge request gitlab-org/gitlab-ce!24927

All applications except for Jupyter have the same #set_initial_status,
so create a new shared example which we include in all application specs
except for juptyer_spec. Juptyer specs already have specs for it's
version of #set_initial_status