auto_update: Ignore dir removal errors on windows (#42435)

The auto update helper already removes these when successful, so these
will always fail in the common case.

Additional replaces a mutable const with a static as otherwise we'll
rebuild the job list on every access

Release Notes:

- N/A *or* Added/Fixed/Improved ...
777b46533fLukas Wirth committed on 11/11/2025, 12:55:19 PM· committed by GitHubparentb3dd515
2 files changedLine totals unavailable