[BUGFIX] Correctly represent CSP UriValue('*')

An entire wildcard `UriValue`, which is just `'*'`, was
incorrectly encoded. In the scope of CSP `'*'` is valid.
Using wildcards should be avoided in favor of being specific.

Resolves: #100798
Releases: main, 12.4
Change-Id: Iaf13b1d2095a672653894a6da5f10ad7115a2538
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/78933


Tested-by: Nikita Hovratov <nikita.h@live.de>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Nikita Hovratov <nikita.h@live.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Oliver Hader <oliver.hader@typo3.org>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>