[TASK] Raise "php-webdriver/webdriver":"^1.12.0"

Raise development dependency "php-webdriver/webdriver" to a
version which includes officially PHP8.1 fixes and opens for
up for "Symfony 6 components" installation on main.

used command:

> composer req php-webdriver/webdriver:"^1.12.0" --dev

Resolves: #96979
Releases: main, 11.5
Change-Id: I1ca15e0473e179c89c39fa2aa46073f3d09a2687
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/73621


Tested-by: core-ci <typo3@b13.com>
Tested-by: Benjamin Franzke <bfr@qbus.de>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Benjamin Franzke <bfr@qbus.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>