Refactor ProjectsFinder#init_collection and GroupProjectsFinder#init_collection

Closes #33632

See merge request !12135

Mention limitations of MySQL in docs

See merge request !12272

Remove changelog entry

See merge request !12309

Resolve "User customize callout has no top-margin on projects page"

Closes #33592 and #33363

See merge request !12090

Fixed filtered search clear button being off-center

Closes #33912

See merge request !12304

Uniformize code between both pipelines tables

Closes #31349, #33754, and #31181

See merge request !12232

Re-instate is_admin flag in users API is current user is an admin

Closes #33260

See merge request !12211

Revert sticky confidential header

Closes #33840

See merge request !12307

This reverts merge request !12195

Do not enable prometheus metrics when metrics folder is missing

See merge request !12263

Moved Open source license templates link into alphabetical order

See merge request !12294

Remove backticks from chat messages because they're not rendered as code

See merge request !12276

Stop showing task status if no tasks are present

Closes #33880

See merge request !12303

Closes #33912

Previously the task status would be visible even if there where no tasks
in the description. This fixes that by changing the regex to check for
tasks without 0.

This also fixes a bug where update the description inline would not
update the task status text on screen.

Closes #33880

Clean up Vue warnings in tests

Closes #33624, #32965, and #33622

See merge request !12163

Merge branch '33734-transient-karma-failure-on-master-for-date-time-utils-timefor-returns-remaining-time-when-in-the-future' into 'master'

Resolve "Transient karma failure on master for `Date time utils timeFor returns remaining time when in the future`"

Closes #33734

See merge request !12227

Resolve "Transient karma failure on master for `Date time utils timeFor returns remaining time when in the future`"

Fix hover style for emoji button on parallel diff view

Closes #33865

See merge request !12281

Fix note highlight being added when you don't have a URL fragment hash #note_xxx

Closes #33916

See merge request !12293

Fix issue description syntax highlighting and math rendering

Closes #33877

See merge request !12282

Update rainbow from 2.1.0 to 2.2.2.

See merge request !12289

Update paranoia from 2.2 to 2.3.1.

See merge request !12288

Remove implicit dependency on `gitlab_sign_in` assigning to a user instance variable

See merge request !12296

Update carrierwave from 1.0.0 to 1.1.0.

See merge request !12291

We shouldn't be using instance variables in specs to begin with, and
depending on this implicit behavior of `gitlab_sign_in` would have made
it more difficult to change to `sign_in` where possible.

...we've also gone ahead and changed to `sign_in` where possible.

Prepare for bypassing GitLab sign in in feature specs

See merge request !11913

Not sure why this fails with the full login flow, but it's not necessary
and would've been changed eventually anyway, so whatever!

Change `logout_direct` uses to `gitlab_sign_out_direct`