This commit has two migrations:

1. The first prunes duplicate rows in the project_features table and leaves
   the row with the highest ID.  Since the behavior was indeterministic before
   and depended on which row the database decided to use, this change at least
   makes the permissions consistent. For example, in some cases, the Wiki may
   have been disabled but enabled in another entry.

2. The second adds a non-null constraint on the project_features.project_id
   column.

Closes #37882

Fixes a significant part of gitlab-com/migration#408.

We found that we were overcounting Wikis because of these duplicates.
On GitLab.com, there are 56 rows with duplicate entries by project_id, and 16,661 rows with NULL project_id values.

Add index on ci_runners.runner_type

See merge request gitlab-org/gitlab-ce!18897

Merge branch '31662-remove-squashed-related-commits-together-from-default-mr-template' into 'master'

Resolve "Remove `Squashed related commits together` from default MR template"

Closes #31662

See merge request gitlab-org/gitlab-ce!18961

Disable greedy mode when matching filename

Closes #44784

See merge request gitlab-org/gitlab-ce!18914

We use this to filter runner and will use this increasingly in future
instead of is_shared so it should be indexed

Remove Spinach

Closes #23036

See merge request gitlab-org/gitlab-ce!18869

Backport Cluster related EE code

See merge request gitlab-org/gitlab-ce!18931

Disable RBAC on Ingress by default

Closes #46286

See merge request gitlab-org/gitlab-ce!18947

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

Update wiki page deletion confirmation

See merge request gitlab-org/gitlab-ce!18712

Enable update_(build|pipeline) for maintainers

Closes #45905

See merge request gitlab-org/gitlab-ce!18735

Fix link to MR for Maintainer Access docs

See merge request gitlab-org/gitlab-ce!18951

Fix minor typo of main docs page

See merge request gitlab-org/gitlab-ce!18952

Correct skewed Kubernetes popover illustration

Closes #46345

See merge request gitlab-org/gitlab-ce!18949

Move SquashBeforeMerge vue component

See merge request gitlab-org/gitlab-ce!18813

It was changed to be true on https://github.com/kubernetes/charts/commit/c60086ec0b260996281d337d67f2361f826f7029

Closes #46286

Backport EE-specific untrusted regexp implementation

See merge request gitlab-org/gitlab-ce!18938

Improve the code review section in MR templates.

See merge request gitlab-org/gitlab-ce!18920

More verbose logging for deprecated path access

See merge request gitlab-org/gitlab-ce!18943

Fix cross-origin errors when attempting to download JavaScript attachments

Closes #45826

See merge request gitlab-org/gitlab-ce!18936

update sidekiq 5.0 -> 5.1

See merge request gitlab-org/gitlab-ce!18765

Resolve "[Rails5] Fix spec/models/ci/pipeline_spec.rb"

Closes #46229

See merge request gitlab-org/gitlab-ce!18906

Current logging tells us we've isolated the calls to about 5 call sites,
now we'd like to know what is calling these methods.

Change `expect` to `except` on help page

See merge request gitlab-org/gitlab-ce!18940

Resolve "`sha-mismatch` vue component is rendering an empty block"

Closes #45462

See merge request gitlab-org/gitlab-ce!18884

Add `createComponentWithMixin` to create anonymous components with mixins

See merge request gitlab-org/gitlab-ce!18899

Fix system hook not firing for blocked users when LDAP sign-in is used

Closes #46307

See merge request gitlab-org/gitlab-ce!18930

Update secpick to use security branches

See merge request gitlab-org/gitlab-ce!18937

Add Code Review documentation that maintainers also perform code review

See merge request gitlab-org/gitlab-ce!18911

Fix gitaly-ruby bundle poisoning in CI

Closes gitaly#1184 and gitaly#1169

See merge request gitlab-org/gitlab-ce!18853