Update pre-commit hook ansible/ansible-lint to v26.9.0

The ownership repair added in e5b8de8c2 is not sufficient on every Ansible privilege-escalation setup. Git may still see a different effective owner after the checkout has been recursively chowned, as demonstrated by #5065.

Pass an exact, task-scoped safe.directory setting to all 56 server-side git tasks. Keep the ownership repair as well, because it remains necessary for filesystem permissions. The two controller-side theme checkouts already use the same protection.