Merge pull request #38507 from sebastian-philipp/mypy-mgr_util

pybind/mgr: disallow_untyped_defs=True for mgr_util

Reviewed-by: Juan Miguel Olmo Martínez <jolmomar@redhat.com>
Reviewed-by: Patrick Seidensal <pseidensal@suse.com>

diff --cc src/mypy.ini
Simple merge

diff --cc src/pybind/mgr/mgr_util.py
Simple merge

diff --cc src/pybind/mgr/tox.ini
Simple merge

diff --cc src/pybind/mgr/volumes/fs/volume.py
Simple merge