Make Issue Boards sidebar subscriptions async

Closes #39167 and #40094

See merge request gitlab-org/gitlab-ce!15364

Implement a workaround for QA mattermost failures

Closes gitlab-qa#102

See merge request gitlab-org/gitlab-ce!15486

Remove pretty time from main.js

See merge request gitlab-org/gitlab-ce!15459

Add Docker binaries to instance image of GitLab QA

See merge request gitlab-org/gitlab-ce!15489

Incorporate Gitaly's RefService.DeleteRefs RPC

Closes gitaly#740

See merge request gitlab-org/gitlab-ce!15460

Update Icons Documentation about Icon Vue Component

Closes #38451

See merge request gitlab-org/gitlab-ce!15171

Add logs for monitoring the merge process

See merge request gitlab-org/gitlab-ce!15425

Don't move project repository/attachments when using hashed storage

Closes #40289

See merge request gitlab-org/gitlab-ce!15479

Clean up schema of the "merge_requests" table

Closes #31825

See merge request gitlab-org/gitlab-ce!15377

Resolve "`master` is broken due to `static-analysis`"

Closes #40335

See merge request gitlab-org/gitlab-ce!15481

When a project is using hashed storage, the repositories and
attachments wouldn't be saved on disk using the `full_path`. So the
migration would not do anything.

However: best to just skip moving when hashed storage is enabled.

Update pipeline status badge details docs

Closes #40316

See merge request gitlab-org/gitlab-ce!15483

Use slug as the prefix for the docs CI job preview URL

See merge request gitlab-org/gitlab-ce!15450

This adds various foreign keys and indexes to the "merge_requests" table
as outlined in https://gitlab.com/gitlab-org/gitlab-ce/issues/31825.

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/31825

Changed validation error message on wrong milestone dates

Closes #38393

See merge request gitlab-org/gitlab-ce!15471

doc: schedules.md: fix only-and-except anchor link

See merge request gitlab-org/gitlab-ce!15473

Signed-off-by: Rémy Coutable <remy@rymai.me>

Fix conflict highlighting

See merge request gitlab-org/gitlab-ce!15463

Use axios instead of vue resource - step 1

See merge request gitlab-org/gitlab-ce!15339

Adds Rubocop rule for line break after guard clause

Closes #18040

See merge request gitlab-org/gitlab-ce!15188

Fix a wrong anchor to job permissions doc

See merge request gitlab-org/gitlab-ce!15478

Hide log size in mobile

Closes #40016

See merge request gitlab-org/gitlab-ce!15431

Merge branch '40300-cannot-list-tags-in-a-repository-mirror-when-hashed-storage-in-use' into 'master'

Fix Gitlab::Git::Repository#remote_tags using unexisting variable

Closes #40300

See merge request gitlab-org/gitlab-ce!15466

Document how to troubleshoot internal API calls

See merge request gitlab-org/gitlab-ce!15337

Signed-off-by: Rémy Coutable <remy@rymai.me>

Update CycleAnalytics seed to account for multiple issue assignees

Closes #40245

See merge request gitlab-org/gitlab-ce!15435

[ci skip]

iFoo

Remove executable bit from images for docs lint

See merge request gitlab-org/gitlab-ce!15468