Exceptions were also simplified from 2 to 1.

`try_to_set_repository_read_only!` is now on the Base class.
Simplified Exception classes from 2 to 1 with a more descriptive name.

New class contains the ExclusiveLease specifics that is shared among
both the Migration and Rollback workers.

This change takes the case where repository doesn't exist on disk
and make it ignore but succeed the step, increasing or decreasing the
version depending on the operation.

Rollback is done similar to Migration for the Hashed Storage.
It also shares the same ExclusiveLease key to prevent both happening
at the same time.

All Hashed Storage related workers now share the same queue namespace
which allows for assigning dedicated workers easily.

Moved to HashedStorage namespace, and added them to the
`:hashed_storage` queue namespace

We are adding sidekiq workers and service classes to allow to rollback
a hashed storage migration. There are some refactoring involved as well
as part of the code can be reused by both the migration and the rollback
logic.

Moves EE differences out of number_utils.js

Closes gitlab-ee#10097

See merge request gitlab-org/gitlab-ce!25680

Merge branch '57991-frontend-pagination-needs-to-handle-cases-where-the-x-total-pages-header-isn-t-present' into 'master'

Improve the JS pagination to handle the case when the `X-Total` and `X-Total-Pages` headers aren't present

Closes #57991

See merge request gitlab-org/gitlab-ce!25601

Clean up `noteable_id` for notes on commits

Closes #54924

See merge request gitlab-org/gitlab-ce!25639

Move related issues shared components from EE

See merge request gitlab-org/gitlab-ce!25613

CE-port for 7714-view-recent-boards

See merge request gitlab-org/gitlab-ce!25602

[QA] Fail early if a Git command fails

Closes #54653

See merge request gitlab-org/gitlab-ce!23450

SIGSTP should be SIGTSTP

Closes #40396

See merge request gitlab-org/gitlab-ce!25682

We will rewrite Related MRs widget in CE with Vue.
It’s pretty much the same with Related Issues in EE.
I made EE only components reusable and this is the CE
backward compatability commit.

Links:

Issue: https://gitlab.com/gitlab-org/gitlab-ce/issues/57662
MR: https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/9730

Adds additional count param to Boards::Visits::LatestService

Use `folder-open` from sprite icons for Browse Files button in Tag page

Closes #58274

See merge request gitlab-org/gitlab-ce!25635

Adds documentation for frontend single repo move

See merge request gitlab-org/gitlab-ce!25650

Move EE differences in CE diff files into CE

Closes gitlab-ee#9969, gitlab-ee#9973, and gitlab-ee#9974

See merge request gitlab-org/gitlab-ce!25678

Bump fog-aws to 3.3.0 and associated dependencies

See merge request gitlab-org/gitlab-ce!21788

Fix inconsistent `branch?` behavior between Ci::Pipeline and Ci::Build

See merge request gitlab-org/gitlab-ce!25629

Closes https://gitlab.com/gitlab-org/gitlab-ee/issues/9974, https://gitlab.com/gitlab-org/gitlab-ee/issues/9973, https://gitlab.com/gitlab-org/gitlab-ee/issues/9969

IssuableFinder - Always use CTE for group counts

Closes #54643

See merge request gitlab-org/gitlab-ce!25411

Fixes issue with AWS V4 signatures not working with Ceph S3:
https://github.com/fog/fog-aws/issues/462

This was incorrectly set by a bug in:
https://gitlab.com/gitlab-org/gitlab-ce/issues/54924

Link to instructions to run SSH tests on GDK

See merge request gitlab-org/gitlab-ce!25661

between Ci::Pipeline and Ci::Build

Add spec

Add more tests

ok

Freeze date in merge request status view spec

See merge request gitlab-org/gitlab-ce!25671

Update convdev.md for clarity

See merge request gitlab-org/gitlab-ce!25626

Docs: Replace issue with a link to the feature

See merge request gitlab-org/gitlab-ce!25670

Increase jupyter seo

See merge request gitlab-org/gitlab-ce!25663