cannot import name mapping from collections Python 3.10 (Fix)

[Josh Ball]

When installing on Python 3.10 There is an issue when importing Mapping from collections.

I've fixed it locally for my project, you just need to change line 30 in rumps.py from:

from collections import Mapping, Iterable

To

from collections.abc import Mapping, Iterable

[Burak Topal]

Actually the problem is already fixed on latest version but it is not on the pypi.
See #173