TST: Windows directory clean up

[aburrell]

On Windows operating systems, the cleanup performed by tempfiles doesn't always work. By Python 3.10, this can be fixed by updating the usage of tempfile.TemporaryDirectory to include ignore_cleanup_errors=True. In the meantime, a try / bare except is used around cleanup statements where known problems occur to keep the code running until older python support can be dropped (estimated to be sometime around the release of Python 3.12).