[BUGFIX] Use single quotes in query for values in EXT:workspaces

Use single quotes for values in the query executed in
WorkspaceService::isOldStyleWorkspaceUsed().

In ANSI SQL, single quotes have to be used for values.

Resolves: #67835
Releases: master, 6.2
Change-Id: I5bf598d9acdbc7d2db6d5b8b6f1a4c668fe13ccb
Reviewed-on: http://review.typo3.org/40748


Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>