Improve error handling of squash and rebase

See merge request gitlab-org/gitlab!23740

Cleanup background migration for populating user_highest_roles table

See merge request gitlab-org/gitlab!31218

Remove unneeded has_attribute guard for MR external diff storage

See merge request gitlab-org/gitlab!30991

Revert "Revert "Report USS+PSS from ruby_sampler""

See merge request gitlab-org/gitlab!31314

This reverts commit 28af6949.

Add Feature Flag User Lists Controller

See merge request gitlab-org/gitlab!30772

Add skeleton templates for new, edit, and show actions

Remove FF environments_dashboard

See merge request gitlab-org/gitlab!30598

Add weights to burnup graph data

See merge request gitlab-org/gitlab!29578

Anonymize GitLab mentions on Status Detail Pages

See merge request gitlab-org/gitlab!27273

Execute potential remaining jobs for the user_highest_roles population
inline and remove the temporary index for it.

Migrate some IDE component specs to Jest

See merge request gitlab-org/gitlab!31263

Migrate some filtered_search files to Jest

See merge request gitlab-org/gitlab!31215

Add pipeline project to package title

See merge request gitlab-org/gitlab!30275

* Implement MentionAnonymizationFilter for StatusPage
* Check that sensitive information is not shown at all

Change some `it do` to `specify do`

See merge request gitlab-org/gitlab!31199

Fix alert management splash page title

See merge request gitlab-org/gitlab!31312

Add documentation about Versioned Snippets

See merge request gitlab-org/gitlab!30559

Remove terminal prompts to allow easy copying

See merge request gitlab-org/gitlab!31211

Design Management FE to FOSS Part 1/3: Move Design Management JS from EE to CE

See merge request gitlab-org/gitlab!31058

Remove FF ci_limit_test_reports_size

See merge request gitlab-org/gitlab!30592

Previously all Git-related exceptions in squash and rebase would quietly
go to `git_json.log`, but these messages should really be tracked in
Sentry and/or `exceptions_json.log`.

In addition, if the squash in progress check failed, the merge would get
stuck. This commit now handles that error gracefully and logs it.

In the future, we can likely remove `git_json.log` altogether.

Add new message to Geo troubleshooting doc

See merge request gitlab-org/gitlab!31299

Resolve member expiration duplicate API call

Closes #204809

See merge request gitlab-org/gitlab!30764

This solves the duplicate API calls from members.js
by removing the additional events being emitted when
a group member's experination date is changed or
removed. The change event doesn't need to get fired
here because it's already being fired by pikaday
in both cases.

Add restart guidance for scaled environments

Closes #213543

See merge request gitlab-org/gitlab!30200

Also callout Sidekiq and GitLab restarts after migrations

Move Design Management-related model code to FOSS

See merge request gitlab-org/gitlab!31165

Link license management button to license compliance policies section

See merge request gitlab-org/gitlab!30344

QA Page Objects updated with new Vue files

See merge request gitlab-org/gitlab!30960

Pages snippet/new.rb and snippet/show.rb updated
Snapshots updated

Changed actions pattern in Vuex guideline

See merge request gitlab-org/gitlab!31302

Refactor usage data fallback argument

See merge request gitlab-org/gitlab!30983

Clear Redis-queues on Sidekiq::Testing.inline!

Closes #216732

See merge request gitlab-org/gitlab!31192

Since in specs we run though all the middleware for Sidekiq jobs, and
that Sidekiq middleware writes to Redis for job deduplication we
should clear that Redis before and after each spec to make sure that
the idempotency keys don't bleed into other specs.

The client middleware for job-deduplication writes a key to redis. The
server middleware removes it again before running the job. If the
spec were to get interrupted between these 2 steps, then the key could
remain in Redis causing failures on the next run in development.