[BUGFIX] Prevent message, if workspaces is not installed

With #10551 a pretty cool new feature was introduced
which will show you information about the status of
non versionable records in list module of TYPO3 backend.

These messages are now only be displayed, if extension
workspaces is activated.

Resolves: #101282
Releases: main, 12.4
Change-Id: I428535a2e301fa38b639fed99d70c8052dfaa6fd
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/79849


Tested-by: Benjamin Kott <benjamin.kott@outlook.com>
Reviewed-by: Benjamin Kott <benjamin.kott@outlook.com>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
(cherry picked from commit 6e69e8c3ea2a1dcee4962b1ab0d90e9511986958)
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/79861