Starting with Rails 5, belongs_to now adds a presence validation to the
association, and so as of shoulda-matchers 4.0.0 the belong_to matcher
follows suit and tests that this validation is there by setting the
association to nil and asserting that there are validation errors. This
exposed an error with the `validate_branches` method: we need to check
the source and target project exist.

Rails 5 requires that belongs_to associations have the associated record
present. These tests were failing because they had nil values.

This removes the warning when using Ruby 2.6:

BigDecimal.new is deprecated; use BigDecimal() method instead.

This also adds Rails 5 support, which eliminates the need for the monkey
patch to handle
https://github.com/thoughtbot/shoulda-matchers/issues/913.

Fix uninitialized constant with HamlLint::LinterRegistry

Closes #62125

See merge request gitlab-org/gitlab-ce!28578

Files in lib will be eager loaded and hence will require haml_lint to be
loaded. Since this is only a development dependency, we can't assume
this gem will be available in production, so it should never be loaded
in production.

Move Chrome variables under conditional

See merge request gitlab-org/gitlab-ce!28505

The migration pod for the GitLab Helm Chart was failing because
of the NameError:

uninitialized constant HamlLint::Linter::NoPlainNodes::LinterRegistry

We now explicitly specify ::HamlLint::LinterRegistry to avoid resolution
errors.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/62125

Move some project routes under /-/ scope

See merge request gitlab-org/gitlab-ce!28435

Quarantine failing test

See merge request gitlab-org/gitlab-ce!28517

Delegate CiVariable fabrication to API

See merge request gitlab-org/gitlab-ce!27924

Fix top border radius of discussions

Closes #58538

See merge request gitlab-org/gitlab-ce!28490

Add timing of repo size reporting

Closes #61395

See merge request gitlab-org/gitlab-ce!28516

Document the differences between Karma and Jest setup

Closes #59976

See merge request gitlab-org/gitlab-ce!28216

Expire pipeline cache on job update

Closes #48024

See merge request gitlab-org/gitlab-ce!28432

Update broadcast message icons

Closes #39304

See merge request gitlab-org/gitlab-ce!28496

Update GitLab Runner Helm Chart to 0.5.0/11.11.0

See merge request gitlab-org/gitlab-ce!28497

Remove 'already initialized constant' warnings

See merge request gitlab-org/gitlab-ce!28518

Bump devise to 4.6

See merge request gitlab-org/gitlab-ce!28438

Signed-off-by: Utkarsh Gupta <guptautkarsh2102@gmail.com>

Port elasticsearch.md changes to EE

See merge request gitlab-org/gitlab-ce!28549

delete japanese proofreader

See merge request gitlab-org/gitlab-ce!28530

Docs: Update documentation with CI variable types usage example

See merge request gitlab-org/gitlab-ce!28515

Update documentation with example how to use CI variable types.

Related to https://gitlab.com/gitlab-org/gitlab-ce/issues/46806.

Document how to access the Insights page

See merge request gitlab-org/gitlab-ce!28488

Update Docs for Chat Notifications

Closes #61867

See merge request gitlab-org/gitlab-ce!28510

Update configuration screenshots for Slack and Mattermost
Update list of events for Mattermost

Add icons from gitlab-svgs
Remove btn-sm class for better sizing

Add changelog

Update mr number changelog

Change to sprite_icon

Clarify case for feature flags

See merge request gitlab-org/gitlab-ce!28424

Make throttling in the dirty_submit form check smarter

Closes #61928

See merge request gitlab-org/gitlab-ce!28377

i18n JS files starting with l

See merge request gitlab-org/gitlab-ce!28065

Jobs should be better isolated to avoid interference with other `image` or...

See merge request gitlab-org/gitlab-ce!28213

Jobs should be better isolated to avoid interference with other `image` or `before_script` statements.

Add HamlLint::Linter::NoPlainNodes linter

See merge request gitlab-org/gitlab-ce!28265

Use `BatchModelLoader` for GroupType

Closes #62066

See merge request gitlab-org/gitlab-ce!28504

Makes 'diff/content' partial use instance method

See merge request gitlab-org/gitlab-ce!28500