Remove specs for #shift_{after,before}?

Closes #13301

See merge request gitlab-org/gitlab-ee!14994

Resolve "Update troubleshooting for gzip error in backup docs"

Closes #64729

See merge request gitlab-org/gitlab-ce!30884

Clarify requirements for custom metrics in docs

See merge request gitlab-org/gitlab-ce!31286

- Also add requirements to the docs for custom metrics.

Clarify requirements for custom metrics in docs

See merge request gitlab-org/gitlab-ee!14912

- Also add requirements to the docs for custom metrics.

Update Gitaly troubleshooting

See merge request gitlab-org/gitlab-ce!30924

Remove sast_container from licensed features

See merge request gitlab-org/gitlab-ee!14980

Further remove code branches by database type (EE)

See merge request gitlab-org/gitlab-ee!14824

These methods don't exist any more.

Fix some Markdown lint errors

See merge request gitlab-org/gitlab-ce!31473

Introduced in https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/30295

Update rules for secure features

See merge request gitlab-org/gitlab-ce!31432

Remove CephFS from example

See merge request gitlab-org/gitlab-ce!31422

Add minimal partial clone docs

Closes gitaly#1581

See merge request gitlab-org/gitlab-ce!30295

Partial Clone and Sparse Checkout are the native Git approach to enormous
repositories. We should document the state of these features and update as our
support and Git's support for these features improves.

Fix docs review-app stages in the pipeline

See merge request gitlab-org/gitlab-ce!31464

Optimize  relative re-positioning

See merge request gitlab-org/gitlab-ce!30938

Resolve "Kubernetes > Applications > Uninstall Cert Manager"

See merge request gitlab-org/gitlab-ce!31166

Enhance style of the shared runners limit

See merge request gitlab-org/gitlab-ce!31386

It also prepare for the EE merge request https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/14786

(CE Port) Upgrade gitlab-ui to 5.12.1

See merge request gitlab-org/gitlab-ce!31466

Update dependency @gitlab/ui to v5.12.1

See merge request gitlab-org/gitlab-ce!31461

Also removes unnecessary methods causing extra queries

Moving of neighbour items was done recursively - this
was extremely expensive when multiple items had to be moved.

This change optimizes the code to find nearest possible gap where
items can be moved and moves all of them with single update query.

Extend PipelineProcessWorker to accept a list of builds

See merge request gitlab-org/gitlab-ce!31425