[BUGFIX] Remove obsolete phpstan error pattern for TypeConverterException

Resolves: #90500
Releases: master
Change-Id: Ieaecff065dcc60c4e8e7c7a19d87fe5a8d18cd40
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/63384


Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Alexander Schnitzler <git@alexanderschnitzler.de>
Reviewed-by: Susanne Moog <look@susi.dev>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Alexander Schnitzler <git@alexanderschnitzler.de>
Tested-by: Susanne Moog <look@susi.dev>