Update dependency @sourcegraph/code-host-integration to v0.0.31

See merge request gitlab-org/gitlab!25413

Improve time to run cluster application specs

See merge request gitlab-org/gitlab!26767

Filter rules by target_branch in approval_settings

See merge request gitlab-org/gitlab!26439

Fix/x509 signed commit

Closes #207612

See merge request gitlab-org/gitlab!25876

Closes gitlab-org/gitlab#207612

Extract notify upon death module

See merge request gitlab-org/gitlab!26725

Swapped comments as they were incorrect

See merge request gitlab-org/gitlab!26721

Doc: Move job_artifacts.md to `ci/pipelines` folder

See merge request gitlab-org/gitlab!26217

Code Quality docs update

Closes #208124

See merge request gitlab-org/gitlab!26528

Added port required by Usage Ping

See merge request gitlab-org/gitlab!26044

Docs: Fix foss-links

See merge request gitlab-org/gitlab!26775

Use DNT: 1 as an experiment opt-out mechanism

Closes #119107

See merge request gitlab-org/gitlab!22100

Ignore health_status column on epics

See merge request gitlab-org/gitlab!26763

Geo HA doc: Add backend application server section

Closes #209738

See merge request gitlab-org/gitlab!26824

Update webpack and associated dependencies

See merge request gitlab-org/gitlab!26622

Separate geo_node and license entities into own class files

See merge request gitlab-org/gitlab!26685

Refactor workhorse passthrough URL checker

See merge request gitlab-org/gitlab!26157

Update selenium link in example doc

Closes #205398

See merge request gitlab-org/gitlab!26758

Fix link to moved project under database_review.md

See merge request gitlab-org/gitlab!26235

Labels - CSS clean up

Closes #208231

See merge request gitlab-org/gitlab!26747

Remove `remote_mirrors_api` feature flag

See merge request gitlab-org/gitlab!26695

Bump minimum node version to v10.13.0

See merge request gitlab-org/gitlab!26831

Update several frontend dependencies

See merge request gitlab-org/gitlab!26755

This reduces the time to run the spec/models/clusters/applications/* by
40 seconds (200 => 160 seconds) on my computer.

Update HAML todo file

See merge request gitlab-org/gitlab!26470

Update deprecated name method in mass_insert.md

See merge request gitlab-org/gitlab!26745

Validate audit event ID on Groups API

See merge request gitlab-org/gitlab!26659

Add presence and type validation on Audit Event ID when getting a
Group-level audit event. This also makes it consistent with a similar
API call to get Instance-level audit event.