[TASK] Unpin CI image docker:20.10.14-dind

The issue has been resolved in sysbox, we don't
need the patch level pin anymore.

Resolves: #98015
Related: #97570
Releases: main, 11.5, 10.4
Change-Id: I1a2080ec3e8609350c9975bad8f65e69513d5f48
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/75221


Tested-by: core-ci <typo3@b13.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>