This commit prepares MergeRequests services
to use JSON log and also adds a log to the
mergeability check service.

Concurrent calls to UserMergeToRef RPC updating a single ref
can lead to an opaque fail that is being rescued at Gitaly.

So this commit adds an exclusive lease to the mergeability
check process with the key as the current MR ID.

Fix EE namespacing of DesignsCounterService

See merge request gitlab-org/gitlab-ee!14881

CE: Add project download & project export audit event

See merge request gitlab-org/gitlab-ce!31103

Further remove `if postgresql?` branches

Closes #65054

See merge request gitlab-org/gitlab-ce!31102

Extract security dashboard permissions

See merge request gitlab-org/gitlab-ee!14754

This commit extracts the controller logic for security dashboard
permissions so that we can reuse it in the upcoming project security
dashboard controllers.

Merge branch '12690-use-all-pipelines-instead-of-ci-pipelines-in-security-dashboard-code' into 'master'

Use `all_pipelines` instead of `ci_pipelines` in Security Dashboard

Closes #12690

See merge request gitlab-org/gitlab-ee!14854

Adds direct monitoring for sidekiq metrics

Closes #56752

See merge request gitlab-org/gitlab-ce!30916

This adds diirect monitoring for sidekiq metrics. This is done via
sidekiq middleware and a sampler to pull from sidekiqs api.

Expose git blame in api

Closes #51345

See merge request gitlab-org/gitlab-ce!30675

UX fixes for Analytics group filter

See merge request gitlab-org/gitlab-ee!14840

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/65054

We dropped MySQL support and a lot of mysql specific code has been
removed in https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/29608.

This comes in from the other direction and removes any `if postgresql?`
branches.

Update IP access restriction docs

See merge request gitlab-org/gitlab-ce!31189

Fix deploy example and other fixes

Closes #65092

See merge request gitlab-org/gitlab-ce!31225

Categorize autodevops variables

Closes #59817

See merge request gitlab-org/gitlab-ce!31226

Added navbar searches usage ping counter

Closes #63887

See merge request gitlab-org/gitlab-ce!30953

Added usage ping counter when the user makes
a search through the navbar search component.

Separate private methods under the keyword on projects controller

See merge request gitlab-org/gitlab-ce!31223

Move create group with mattermost spec to correct dir

See merge request gitlab-org/gitlab-ce!31173

Add frozen_string_literal to spec/features

See merge request gitlab-org/gitlab-ce!31131

Allow specifying variables when running manual jobs

Closes #24935

See merge request gitlab-org/gitlab-ce!30485

Adds Job specific variables to facilitate specifying variables when
running manual jobs.

EE PORT - Allow specifying variables when running manual jobs

See merge request gitlab-org/gitlab-ee!14784