Add Python 3.10 to CI (#161)

* Run tests in python 3.10

* Set python version as string

if someone tries to update to 3.10, it will fail and
try to install pyhton 3.1 because integer

* Rename run-tests workflow to run_tests (consistency)

* Bump workflow actions, refactor python setup and cache

Based on https://github.com/actions/setup-python#caching-packages-dependencies

* Disable fast-fail

* Make poetry use the correct python version

see https://github.com/actions/setup-python/issues/374#issuecomment-1088938718

windows hosts cannot find python3.x in $PATH, but after
setup-python the python executable uses the correct version

* Bump poetry deps

some builds are complainig about the lock file

Make it compatible with python 3.10
poetry update in python 3.10, macOS M1