[BUGFIX] Resolve null coalesce order of operation issues

The > operator binds higher than ??, meaning these are always comparing
null to 0.  That is clearly not the intent.

Used command:

> ./Build/Scripts/runTests.sh -s phpstanGenerateBaseline

Resolves: #97978
Releases: main, 11.5
Change-Id: I3410e087fe7fa214c4cb43312a551d8ca3047e70
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/75219


Tested-by: core-ci <typo3@b13.com>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>