Python warnings from pygeodiff

[wonder-sk]

When I start QGIS with MM plugin, there are a bunch of warnings coming from pygeodiff going to the log messages, e.g.:

warning:/home/martin/.local/share/QGIS/QGIS3/profiles/default/python/plugins/Mergin/mergin/deps/pygeodiff/main.py:79: SyntaxWarning: invalid escape sequence '\p'

This is most likely due to the fact that a couple of docstrings have \param in the content, which Python does not like to see. It may be a good idea to switch that to :param as this is typically(?) used elsewhere...