Update all non-sr.ht Python packages
py3-asyncpg: upgrade to 0.23.0
py3-asyncpg: upgrade to 0.22.0
py3-asyncpg: upgrade to 0.21.0
py3-asyncpg: upgrade to 0.20.1
sr.ht/py3-asyncpg: update to 0.20.0
Normalize py-* packages