[Rails5] Permit concurrent loads

Closes #48263

See merge request gitlab-org/gitlab-ce!20473

Fix doc for large table column rename

See merge request gitlab-org/gitlab-ce!20544

Properly handle colons in URL passwords

Closes #49080

See merge request gitlab-org/gitlab-ce!20538

Fix ArgumentError in GitGarbageCollectWorker Sidekiq job

Closes #49096

See merge request gitlab-org/gitlab-ce!20541

When the Gitaly call failed, the exception handling failed
because `method` is expected to have a parameter.

Closes #49096

Before b46d5b13, we relied on
`Addressable::URI` to parse the username/password in a URL, but this failed
when credentials contained special characters. However, this introduced a regression
where the parsing would incorrectly truncate the password if the password had a colon.

Closes #49080

Mock timeouts and Promise in SmartInterval tests

See merge request gitlab-org/gitlab-ce!20496

Remove timestamps from `locale/gitlab.pot`

Closes #49077

See merge request gitlab-org/gitlab-ce!20533

This will help us avoid conflicts when regenerating the pot file, the
timestamps aren't used by Crowdin.

Add daylight saving time support for pipeline schedules

Closes #37165

See merge request gitlab-org/gitlab-ce!20145

Make sure ConflictsService does not raise for conflicting submodules

See merge request gitlab-org/gitlab-ce!20528

Fix a typo on CI Runner page on Projects

See merge request gitlab-org/gitlab-ce!20467

Merge branch 'rd-6804-bug-unable-to-delete-branches-when-repo-reaches-the-size-limit-ce' into 'master'

Backport some changes from EE

See merge request gitlab-org/gitlab-ce!20388

Revert "Merge branch 'fix-inconsistent-cancel-button' into 'master'"

See merge request gitlab-org/gitlab-ce!20525

Fix a typo in Gitlab::Git::Repository

See merge request gitlab-org/gitlab-ce!20520

Resolve "Disable GCP free credit banner at instance level"

Closes #48578

See merge request gitlab-org/gitlab-ce!20379

Rename code climate to code quality

See merge request gitlab-org/gitlab-ce!20506

This reverts merge request !20140

CE: Resolve "Extract EE specific files/lines for spec/mailers, app/mailers/preview"

See merge request gitlab-org/gitlab-ce!20508

Rails5 MySQL fix rename_column as part of cleanup_concurrent_column_type_change for timestamps

See merge request gitlab-org/gitlab-ce!20514

Backport some changes made for this spec in EE

See merge request gitlab-org/gitlab-ce!20318

Rails 5 introduced a new (and safer) autoload mechanism which
uses locking when loading missing constants. Under some circumstances
it's possible that a deadlock occurs in multi-threaded environment
(especially when running capybara tests)

To avoid these deadlocks, concurrent load is enabled when loading
policies - we ere hitting timeout in this case:
https://gitlab.com/gitlab-org/gitlab-ce/issues/48263

Note that autoloading is enabled only in development or test envs
(not in production).

Update bitbucket.md to fix typo and small grammar touchups.

See merge request gitlab-org/gitlab-ce!20482

Update time_helper.rb to fix output for exact minutes.

Closes #48948

See merge request gitlab-org/gitlab-ce!20479

Document update for GitLab Pages users.

See merge request gitlab-org/gitlab-ce!20412

Fix API docs around unauthenticated projects return fields

See merge request gitlab-org/gitlab-ce!20477

Use Gitaly for fetches and creating bundles

Closes gitaly#387, gitaly#874, gitaly#750, and gitaly#665

See merge request gitlab-org/gitlab-ce!20490

Improve metadata access performance

See merge request gitlab-org/gitlab-ce!20493