Implementation for protected variables

Closes #24196

See merge request !11688

Resolve "Improve Container Registry description"

Closes #30651

See merge request !11816

Fix replying to a commit discussion displayed in the context of an MR

Closes #33201

See merge request !11847

Fix title of discussion jump button at top of page

See merge request !11768

Fix data inconsistency issue for old artifacts by moving them to a currently used path

Closes #32036

See merge request !11824

Update session cookie key name to be unique to instance in development

Closes #31644

See merge request !11839

Update diff discussion position per discussion instead of per note

Closes #33157

See merge request !11833

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/31644

Feedback:
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/11688/diffs#note_31277454

Add missing `can_push` parameter to POST /v3/deploy_keys

See merge request !11607

Document not using ActiveRecord's serialize method

See merge request !11821

Fix N+1 queries for non-members in comment threads

See merge request !11827

Only remove FK if it exists

See merge request !11828

Display Shared Runner status in Admin Dashboard

Closes #31602

See merge request !11783

Fix: A diff comment on a change at last line of a file shows as two comments in discussion

Closes #32353

See merge request !11802

Fix pipeline schedule value name in documentation, fixes #33142

Closes #33142

See merge request !11840

Fixes multi-line math in notebooks

Closes #30900 and #33074

See merge request !11789

When getting the max member access for a group of users, we stored the results
in RequestStore. However, this will only return results for project members, so
anyone who wasn't a member of the project would be checked once at the start,
and then once for each comment they made. These queries are generally quite
fast, but no query is faster!

Consistent diff and blob size limit names

See merge request !11776

Don't match email addresses or foo@bar as user references

See merge request !11837

Resolve N+1 query issue with discussions

Closes #33013

See merge request !11775

# Conflicts:
#   db/schema.rb

Add GitLab Resources to University

See merge request !11832

Introduce source to pipeline entity

See merge request !11682

This reverts commit 0d55def4.

This change continues with the plan to change the parameters passed
around GitLab components to allow for independence of mount points. See
https://gitlab.com/gitlab-org/gitlab-shell/merge_requests/130#note_28747613

# Conflicts:
#   db/schema.rb

Add feature toggles through Flipper

See merge request !11747

Make .gitmodules parsing more resilient to syntax errors

Closes #26009

See merge request !11803