[BUGFIX] Add missing disabled state for form-select

Resolves: #104893
Releases: main
Change-Id: I9cbee0ca23f33d58ad99cabf3f7511fc4620b0d0
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/86003


Tested-by: Benjamin Franzke <ben@bnf.dev>
Reviewed-by: Jochen Roth <rothjochen@gmail.com>
Reviewed-by: Benjamin Kott <benjamin.kott@outlook.com>
Tested-by: Jochen Roth <rothjochen@gmail.com>
Reviewed-by: Benjamin Franzke <ben@bnf.dev>
Tested-by: Benjamin Kott <benjamin.kott@outlook.com>
Tested-by: core-ci <typo3@b13.com>