[BUGFIX] Consider EqualityInterface in SourceCollection

The behavior of `EqualityInterface` has to be applied when
comparing instances that implement this interface to find
duplicates in a `SourceCollection`.
For instance two instances of `UriValue`, that have the same
URI value could not be handled correctly - either there are
duplicates, or values cannot be removed from a collection.

Resolves: #100621
Releases: main
Change-Id: I48e6d1d9006260065fee812d648274e0fbbf2d75
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/78712


Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Chris Müller <typo3@krue.ml>
Tested-by: Oliver Hader <oliver.hader@typo3.org>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>