Ansible 6 is EOL and Ansible 9 is available. Remove 6 and add 9.
This is usually done in two changes, but this time it's in one
since we can just rotate the 6 around to make it a 9.
command.py has been updated for ansible 9.
Change-Id: I537667f66ba321d057b6637aa4885e48c8b96f04