[GraphQL] Lookahead optimizations for merge requests

See merge request gitlab-org/gitlab!32373

This uses lookahead to preload associations we know we are going to
need.

To ensure this works, the keyset connection is updated to support
pre-loaded associations This enables results sets that are already in
memory to be efficiently handled without making extra unnecessary
queries.

Updates Auto DevOps docker version usage to 19.03.11

See merge request gitlab-org/gitlab!33664

- Updates version on Build, Code Quality and performance jobs
- Updates docs.

Describe authoritative external links

See merge request gitlab-org/gitlab!28343

Update release maintenence/upgrade documentation

Closes #219221 and gitlab-com/support/support-team-meta#2287

See merge request gitlab-org/gitlab!32802

Review documentation page: /ee/policy/maintenance.html

Update Azure OmniAuth documentation.

Closes #219129

See merge request gitlab-org/gitlab!33937

Add preconnect tag for Snowplow

Closes #220499

See merge request gitlab-org/gitlab!33959

DAST On-demand scans MVC - Initiate Scan - Create page - Frontend

See merge request gitlab-org/gitlab!32994

- Created a basic landing page for the upcoming on-demand scans feature
- Created a minimal Vue for displaying an empty state in the new page
- Added specs

Remove instance of blacklist from "License Compliance" overview

Closes #219980

See merge request gitlab-org/gitlab!33910

Remove undefined from docs

See merge request gitlab-org/gitlab!33602

Docs: Remove 'whitelist' from webhooks page

See merge request gitlab-org/gitlab!33770

Update page and image name to remove the term 'whitelist' in favor
of 'allowlist.'

Calculate recording time  before other usage data

See merge request gitlab-org/gitlab!33882

Fix metrics dashboard YAML validation

See merge request gitlab-org/gitlab!33935

Docs: move troubleshooting section

Closes #36604

See merge request gitlab-org/gitlab!33979

This acronym doesn't need re-defining frequently.

Remove FF hide_token_from_runners_api

See merge request gitlab-org/gitlab!33947

Add geo_primary_replication_events to usage data

See merge request gitlab-org/gitlab!33424

Allow For GitLab Todos Created From Alerts

See merge request gitlab-org/gitlab!33743

Support alerts as a target_type so that they
display in the To Do list. This does not include
the logic to populate alerts to the todo list.

Update ActiveToggle and JiraTriggerFields with new form layout

See merge request gitlab-org/gitlab!32677

Merge branch '220479-harden-operations_dashboard_default_dashboard-usage-data-queries' into 'master'

Harden operations_dashboard_default_dashboard usage query

Closes #220479

See merge request gitlab-org/gitlab!33952

Add troubleshooting notes for EKS clusters

See merge request gitlab-org/gitlab!33451

Add table to issues analytics docs

See merge request gitlab-org/gitlab!33514

Fixed typo in backup_restore.md

See merge request gitlab-org/gitlab!33665

Speed up the BlameController: view part

See merge request gitlab-org/gitlab!33283

Precalculate links and other per-commit data beforehand, as huge blame
which may consist of >9000 groups, may have only 1000 unique commits (as
seen on locales/gitlab.pot).

Refactor Jira Importer Vue app code

See merge request gitlab-org/gitlab!33636

Add templating and links keys to dashboard json schema

Closes #219501

See merge request gitlab-org/gitlab!33791

Add templating and links keys to dashboard fixture