[TASK] Fix spelling error in ext:workspaces

Fix spelling error.

Resolves: #100287
Relates: #95769
Releases: main
Change-Id: I5dfa77780409208cce30db09b33d441a85f5b7d3
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/78244


Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Benni Mack <benni@typo3.org>