[BUGFIX] Properly escape <> in Install Tool Check.

Escape the < > in the check of the Windows Apache ThreadStackSize.

Resolves: #81134
Releases: master, 8.7
Change-Id: Iaa73e61438766f413ba7aeeaebac0fcbf41f1a99
Reviewed-on: https://review.typo3.org/52925


Tested-by: TYPO3com <no-reply@typo3.com>
Tested-by: Riccardo De Contardi <erredeco@gmail.com>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>