[BUGFIX] Consider URL encoded values for addQueryString.exclude

TypoScript property `addQueryString.exclude` concerns the internal,
URL-decoded values. However, the parameters are purged from a query
array that is URL-encoded.

Resolves: #102386
Releases: main, 12.4
Change-Id: Ibcdca016221035f5f2974007b1fc52c04f5d643f
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/82261


Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>
Tested-by: Oliver Hader <oliver.hader@typo3.org>