TASK: Tag as version 9.0.4

See https://jenkins.neos.io/job/neos-release/471/

TASK: Tag as version 9.0.3

See https://jenkins.neos.io/job/neos-release/469/

TASK: Tag as version 9.0.2

See https://jenkins.neos.io/job/neos-release/467/

TASK: Tag as version 9.0.1

See https://jenkins.neos.io/job/neos-release/466/

Merge pull request #5538 from neos/bugfix/workspace-ui-missing-diff

BUGFIX: Missing diff in review and style issues in workspace ui

TASK: Tag as version 9.0.0-beta20

See https://jenkins.neos.io/job/neos-release/463/

TASK: Tag as version 9.0.0-beta19

See https://jenkins.neos.io/job/neos-release/462/

Merge pull request #5508 from mhsdesign/bugfix/workspace-review-show-…

…only-actual-changes

BUGFIX: Improve workspace module change handling

TASK: Tag as version 9.0.0-beta18

See https://jenkins.neos.io/job/neos-release/459/

TASK: Tag as version 9.0.0-beta17

See https://jenkins.neos.io/job/neos-release/456/