Fix CI_PROJECT_PATH_SLUG slugify

Closes #34643

See merge request !13350

Don't depend on `Rails` for Redis configuration file paths

Closes #36514

See merge request !13575

Speed up project creation by inlining repository creation

Closes #34533

See merge request !13529

Don't create event in Merge Request Create Service

Closes #36465

See merge request !13566

Fix the fly-out menu in the sidebar not displaying in Safari

Closes #36441

See merge request !13445

Add documentation for groups issue filtered search

Closes #36377

See merge request !13572

Fix username autocomplete group name with no avatar alignment

Closes #36502

See merge request !13578

Fix 'Projected tags' typo in protected_tags_spec.rb

See merge request !13576

Make sure MySQL would not use CURRENT_TIMESTAMP as the default for timestamp columns

Closes #36405

See merge request !13560

Many Repo Fixes

See merge request !13432

Use border radius scss vars

See merge request !13360

The `Rails` object was not always available in all tasks that require
Redis access, such as `mail_room`, so the constant pointing to the
configuration path was never defined, but we still attempted to access
it in `config_file_name`, resulting in a `NameError` exception.

Further, there was no benefit to defining these paths in a constant to
begin with -- they're only accessed in one place, and it was within the
class where they were being defined. We can just provide them at
run-time instead.

Further _still_, we were calling `File.expand_path` on the absolute path
returned by `Rails.root.join`, which was rather pointless.

Resolve "Tech article: Deploying Maven artifacts"

Closes #33329

See merge request !11955

Repo Editor Fixes

See merge request !13468

Docs: New index for permissions

Closes #32577

See merge request !13394

Fixed changed files dropdown not being shown

Closes #36479

See merge request !13554

Merge branch 'master' of gitlab.com:gitlab-org/gitlab-ce into 33329-tech-article-deploying-maven-artifacts

Fix API responses when dealing with txt files

Closes #31790

See merge request !13474

Closes #36479

Remove deprecated field from workhorse API responses

See merge request !13567

Fix inconsistent spacing for edit buttons on issues and merge request page

Closes #36206

See merge request !13547

Resolve "Enable scope hoisting with webpack"

Closes #36152

See merge request !13374

Allow usage of any_projects? with an Array

Closes #3646

See merge request !13559

# Conflicts:
#   app/views/projects/merge_requests/_nav_btns.html.haml