[!!!][TASK] Remove `ExpressionBuilder::trim()` deprecation

With #102875 Doctrine DBAL 4.x has been added which was a
task over a longer time. Originally planned to deprecate
changes the later decision was to pass Doctrine breaking
changes directly.

It has been missed to remove the `ExpressionBuilder::trim()`
deprecation for the integer TrimMode and the mitigation for
it.

This change now removes the deprecation and directly allows
only the Doctrine DBAL TrimMode enum.

[1] https://github.com/doctrine/dbal/blob/4.0.x/UPGRADE.md#bc-break-converted-enum-like-classes-to-enums

Resolves: #102916
Related: #102875
Releases: main
Change-Id: I21d8395be3ca1ef909b4c1443c48398b580bf807
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/82636


Reviewed-by: Nikita Hovratov <nikita.h@live.de>
Reviewed-by: Andreas Kienast <a.fernandez@scripting-base.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Andreas Kienast <a.fernandez@scripting-base.de>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: Stefan Bürk <stefan@buerk.tech>