Remove WorkspaceStatus::OUTDATED_CONFLICT?

[mhsdesign]

What happens with \Neos\ContentRepository\Core\Projection\Workspace\WorkspaceStatus::OUTDATED_CONFLICT the doc comment is now at least outdated and we never use it anymore besides writing for legacy event but we never query those?

So can we get rid of this status ?

Originally posted by @mhsdesign in #4965 (comment)

[mhsdesign]

Also we dont need the REBASE_ERROR any further and the docs are outdated:

neos-development-collection/Neos.ContentRepository.Core/Classes/SharedModel/Workspace/ContentStreamStatus.php

Line 80 in fab9d2d

case REBASE_ERROR = 'REBASE_ERROR';

as well as this comment here too:

neos-development-collection/Neos.ContentRepository.Core/Classes/Feature/WorkspaceRebase/Dto/RebaseErrorHandlingStrategy.php

Line 28 in a8857d3

* This strategy rebasing will fail if conflicts are detected and the "WorkspaceRebaseFailed" event is added.

Also some adjusted tests where not really testing that what they stated, this will be adjusted via: #5274

• Conflicting changes lead to OUTDATED_CONFLICT which can be recovered from via forced rebase
• Conflicting changes lead to OUTDATED which can be recovered from via discard