See !6096.

Signed-off-by: Rémy Coutable <remy@rymai.me>

add docs and tests - add additional validation
allow move without content
updated response

Skipped jobs should be considered successful

## What does this MR do?

If all jobs in previous stage are all skipped, the next stage should consider previous stage succeeded.

## Why was this MR needed?

Since for now we consider all manual jobs if skipped, should not block the next stage from running.

Closes #22598 

See also #20342 (because this merge request conflicts with it)

See merge request !6604

Projects that are destroyed are put in the pending_delete state.
The ProjectDestroyWorker checks whether the current user has
access, but since the ProjectFeature class uses the default scope
of the Project, it will not be able to find the right project.

This was a regression in 8.12 that caused the following stack trace:

```
NoMethodError: undefined method `team' for nil:NilClass
  from app/models/project_feature.rb:62:in `get_permission'
  from app/models/project_feature.rb:34:in `feature_available?'
  from app/models/project.rb:21:in `feature_available?'
  from app/policies/project_policy.rb:170:in `disabled_features!'
  from app/policies/project_policy.rb:29:in `rules'
  from app/policies/base_policy.rb:82:in `block in abilities'
  from app/policies/base_policy.rb:113:in `collect_rules'
  from app/policies/base_policy.rb:82:in `abilities'
  from app/policies/base_policy.rb:50:in `abilities'
  from app/models/ability.rb:64:in `uncached_allowed'
  from app/models/ability.rb:58:in `allowed'
  from app/models/ability.rb:49:in `allowed?'
  from app/services/base_service.rb:11:in `can?'
  from lib/gitlab/metrics/instrumentation.rb:155:in `block in can?'
  from lib/gitlab/metrics/method_call.rb:23:in `measure'
  from lib/gitlab/metrics/instrumentation.rb:155:in `can?'
  from app/services/projects/destroy_service.rb:18:in `execute'
```

Closes #22948

* upstream/master: (55 commits)
  Restrict failed login attempts for users with 2FA
  Update RuboCop to 0.43.0 and update configuration
  Use SELECT 1, instead SELECT COUNT(*) to ask for notes existency
  Simplify Mentionable concern instance methods
  Fix issues importing services via Import/Export
  deployment refs in own folder, new method for creating refs
  Update method name
  Save a fetchable ref per deployement
  GrapeDSL for Namespace endpoint
  Remove SCSS rules for short hex chars.
  Fix bug when trying to cache closed issues from external issue trackers
  Upgrade acts-as-taggable-on from 3.5.0 to 4.0.0.
  Remove useless code now that Member#add_user handles it
  Combine requestFileSuccess arguments into `opts`
  Append issue template to existing description
  Invert method's naming
  Fix a few things after the initial improvment to Members::DestroyService
  Improve Members::DestroyService
  Add Container Registry on/off status to admin area
  Enable Lint/StringConversionInInterpolation cop and autocorrect offenses
  ...

Fix bug when trying to cache closed issues from external issue trackers

fixes #22446

See merge request !6619

Improve `Members::DestroyService`

Part of #21979.

See merge request !6267

Signed-off-by: Rémy Coutable <remy@rymai.me>