Update test_bareasc.py

Update test_embedart.py

Update test_play.py

Update test_zero.py tmp file cleanup

Update test_play.py tmp file cleanup

Update test_embedart.py tmp file cleanup

Update test_bareasc.py tmp file cleanup

Update test_art.py tmp file cleanup

Update test_art.py tmp cleanup

Upgrade to Python 3.8 / drop Python 3.7 (beetbox#5283)

Add a workflow for easily creating releases (beetbox#4952)

Add a workflow for easily creating releases (beetbox#4952)