Clean up yaml code blocks in CI docs

See merge request gitlab-org/gitlab!41651

Update Gitaly version

See merge request gitlab-org/gitlab!41799

Add performance section to testing best practice guide

See merge request gitlab-org/gitlab!40968

This incorporates the existing test-speed hints

Update documentation as per https://gitlab.com/gitlab-org/gitlab/-/issues/235123

See merge request gitlab-org/gitlab!41273

Remove unnecessary spec usage_activity_by_stage  spec

See merge request gitlab-org/gitlab!41740

Refactor User Interacted Project test to support factories parent strategy

See merge request gitlab-org/gitlab!41698

Disable trim_trailing_whitespace for JS snapshots

See merge request gitlab-org/gitlab!41725

Refactor tests to support Parent Strategy in factories

See merge request gitlab-org/gitlab!41758

We need a persisted user for the project because it is used in some
specs

Update Gitaly version

See merge request gitlab-org/gitlab!41796

Remove DinD mode from DS docs

See merge request gitlab-org/gitlab!40631

Everything related to Docker-in-Docker mode
from Dependency Scanning documentation.

Speed up project specs

See merge request gitlab-org/gitlab!41708

Move off the invisible include as bootstrap has deprecated it

Closes #246747

See merge request gitlab-org/gitlab!41745

Refactor User Agent Detail tests to support factories parent strategy

See merge request gitlab-org/gitlab!41697

Refactor Diff Note tests to support factories parent strategy

See merge request gitlab-org/gitlab!41690

Refactor tests to support Parent Strategy in factories

See merge request gitlab-org/gitlab!41754

Fix padding on CI settings tables in mobile version

See merge request gitlab-org/gitlab!41728

Fixed source branch not displaying correctly in MR sidebar

See merge request gitlab-org/gitlab!41778

Widen TODO list only on mobile to be mobile-friendly

See merge request gitlab-org/gitlab!41244

Remove deprecated button in project_selector/project_list_item.vue

Closes #219895

See merge request gitlab-org/gitlab!39460

Fix subscription portal URLs in specs

Closes #246483

See merge request gitlab-org/gitlab!41646

Removed GlDeprecatedButton from enviro rollback

Closes #219793

See merge request gitlab-org/gitlab!40751

Implement allowing child pipeline to have child pipeline

See merge request gitlab-org/gitlab!41102

In this commit, we are just allowing parent->child->child nesting.
This is controlled by MAX_DESCENDANTS_DEPTH constant.

This feature is also behind a FF ci_child_of_child_pipeline for now.

Upgrade GitLab Pages to 1.24.0

See merge request gitlab-org/gitlab!41782

Remove expired_pat_email_notification feature flag

See merge request gitlab-org/gitlab!41166

Feature flag rollout `search_track_unique_users`

See merge request gitlab-org/gitlab!41739

Update log_tree to use immutable cache update

See merge request gitlab-org/gitlab!41746

- graphql config
- log_tree update
- test adjustments

Update Gitaly version

See merge request gitlab-org/gitlab!41322

Internationalize Admin users new

See merge request gitlab-org/gitlab!41367

Remove feature flag buy_ci_minutes_version_a_experiment_percentage

See merge request gitlab-org/gitlab!41632