- Fix `O(n)` complexity of `append_or_update_attribute`,
  we append objects to an array and re-save project
- Remove the usage of `keys.include?` as it performs `O(n)`
  search, instead use `.has_key?`
- Remove the usage of `.keys.first` as it performs a copy
  of all keys, instead use `.first.first`

Updates all our stylelint dependencies

See merge request gitlab-org/gitlab-ce!31028

Removed stylelint-error-string-formatter
 as this was having a circular reference fail

Resolve difference in app/assets/stylesheets/application.scss

See merge request gitlab-org/gitlab-ce!31007

Port common class only used in EE

See merge request gitlab-org/gitlab-ce!31008

hoverable area on collapsed sidebar icons

Closes #61207

See merge request gitlab-org/gitlab-ce!30974

CE-EE parity for pipelines development fixture

See merge request gitlab-org/gitlab-ce!30870

Update GitLab Runner Helm Chart to 0.7.0/12.1.0

See merge request gitlab-org/gitlab-ce!30950

Update webpack-bundle-analyzer to 3.3.2

See merge request gitlab-org/gitlab-ce!31035

This is needed to fix an issue where updating to the latest Webpack
causes an acorn dependency error:
https://github.com/webpack-contrib/webpack-bundle-analyzer/issues/245

Seen while trying to update dependencies for Mermaid in
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/30985

Docs: Update old SAML settings screenshot

See merge request gitlab-org/gitlab-ce!31031

QA: Prefer `flat_map` over `map` + `flatten`

See merge request gitlab-org/gitlab-ce!30883

Port EE specific settings to CE

See merge request gitlab-org/gitlab-ce!30998

Fix xterm CSS not loading

Closes #64091

See merge request gitlab-org/gitlab-ce!31023

Convert githost.log to JSON format

See merge request gitlab-org/gitlab-ce!30967

Adds cluster_for_group factory for convenience

See merge request gitlab-org/gitlab-ce!30826

This will make it easier to parse this in production and adds the
`correlation_id` if available.

Fix wrong name of params in events controller

See merge request gitlab-org/gitlab-ce!30738

Add cr remarks

Add cr remarks

Resolve remaining import export differences

See merge request gitlab-org/gitlab-ce!31012

Use debian based node images for qa tests

Closes #64930

See merge request gitlab-org/gitlab-ce!31020

Fix translation of 'Updated' term in projects list

See merge request gitlab-org/gitlab-ce!30958

The alpine images do not contain a full build toolchain, so if the
pre-compiled node-sass bindings cannot be downloaded, they will error
and break master. By switching to the debian based images, we are able
to compile in case the downloads are not available.

Dry the list of stage and group labels by linking to them directly

See merge request gitlab-org/gitlab-ce!30365

We also scope the `rescue`s to only those raised by ActiveRecord, which
would have allowed us to spot this logic error sooner.

Remove duplicate entry from all_models.yml

See merge request gitlab-org/gitlab-ce!31010

Merge branch '64870-can-t-save-pages-domain-form-with-let-s-encrypt-enabled-if-current-certificate-is-outdated' into 'master'

Resolve "Can't save pages domain form with Let's Encrypt enabled if current certificate is outdated"

Closes #64870

See merge request gitlab-org/gitlab-ce!30995

This validation prevents the domain from being saved from the UI
e.g. when user tries to enable Let's Encrypt integration

Add a group setting to allow Maintainers to create sub-groups

See merge request gitlab-org/gitlab-ce!29718

CE backport of "Add or remove blocking merge requests"

See merge request gitlab-org/gitlab-ce!30908

This backports remaining import/export spec changes from EE to CE.

Ensure SubmoduleHelper works outside view context

Closes #64833

See merge request gitlab-org/gitlab-ce!31005