[TASK] Raise typo3/testing-framework:^6.16.7

A couple of streamlinings with latest tag,
so we raise it.

> composer req --dev typo3/testing-framework:^6.16.7

Resolves: #99907
Releases: 11.5, 10.4
Change-Id: I4009e3a5b045ad990746d3da1237911ad944b391
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/77809


Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: Stefan Bürk <stefan@buerk.tech>