Fix Markdown not rendering on releases page

Closes #39483

See merge request gitlab-org/gitlab!23370

Previously Markdown that appeared in the releases page would only be
shown in the tags page but not in the summary page. We fix this by
adding a reference to GitLab Markdown in the description block and
ensuring the Vue component renders Markdown.

Closes https://gitlab.com/gitlab-org/gitlab/issues/39483

Resolve "Improve running tests as foss in `gitlab-org`"

Closes #198288

See merge request gitlab-org/gitlab!23489

Add blob and blob_viewer fields to graphql snippet type

See merge request gitlab-org/gitlab!22960

Resolve "Setting minimum password length breaks sign-up with SAML"

Closes #197925

See merge request gitlab-org/gitlab!23387

Move cluster permissions check to dashboard service subclass

See merge request gitlab-org/gitlab!23361

Environments dropdown only shows 20 environments

See merge request gitlab-org/gitlab!23017

Add social sign up on new sign up flow

See merge request gitlab-org/gitlab!23082

This change fixes the bug where random password
being generated while creating a user has less
characters in them than what is required by the instance setting
`minimum_password_length`

Revert "Merge branch 'qa-alerting-test' into 'master'"

See merge request gitlab-org/gitlab!23487

Fix issue with project dropdown translation for languages without pluralisation

See merge request gitlab-org/gitlab!21988

Document that EE-only background migrations are forbidden

Closes #196704

See merge request gitlab-org/gitlab!23201

Resolve "Docs update for downgrading release if required"

Closes #197133

See merge request gitlab-org/gitlab!23221

Clarify a CI/CD Reference, hopefully

Closes #33232

See merge request gitlab-org/gitlab!23342

Minor fixes to new scalability content

See merge request gitlab-org/gitlab!23480

Geo: Improve logging of sync services - include host

See merge request gitlab-org/gitlab!22203

This reverts merge request !20591

Update Elasticsearch development docs for new versions

Closes #197289

See merge request gitlab-org/gitlab!23257

This also removes Homebrew instructions as 6.x is not available

extra_log_data() will be merged into
base_log_data().

Resolve "Condev topic renamed without redirect"

Closes #197873

See merge request gitlab-org/gitlab!23356

Make merge trains in QA tests independent

See merge request gitlab-org/gitlab!23304

If multiple tests use the same project they'll use the same merge
train. That can cause tests to fail if one tries to use the merge
train while it's in an unexpected state, e.g., trying to start a new
train when one is already running.

This creates a separate project for each test that uses a merge
train.

Uses the Commit API to add a file because it's faster than
pushing.

Adds a runners_token attribute to the Group resource, and lets
resources be reloaded so updated data can be fetched. It's not
clear why the runners token isn't available immediately upon
creating a group, but reloading the API data fixes it.

Add initial draft of scalability documentation

See merge request gitlab-org/gitlab!18976

Add section on renaming tables to downtime guide

See merge request gitlab-org/gitlab!20809

Update the directory for unshifting

Closes #198274

See merge request gitlab-org/gitlab!23473

Fixes typos on Feature proposal template

See merge request gitlab-org/gitlab!23472

Path of file changed in https://gitlab.com/gitlab-org/gitlab/merge_requests/23335 but reference to directory did not
Closes https://gitlab.com/gitlab-org/gitlab/issues/198274

While preparing a feature proposal I found some typos, so this commit
fixes them

Fix specs for CHROME_HEADLESS=0

See merge request gitlab-org/gitlab!23360

Alerting E2E test

See merge request gitlab-org/gitlab!20591

Check for minimal count of performance bar metrics

Closes #197135

See merge request gitlab-org/gitlab!23270

Docs: add nav steps to get to Code Review

See merge request gitlab-org/gitlab!23440