
This bumps the newest python version tested to 3.11 and drops testing for 3.7, 3.8, and 3.9. We only test the lower and upper python version bounds. We switch to an ed25519 ssh key instead of rsa because Ubuntu Jammy defaults to rsa + sha2 and Gerrit 3.4.4 does not understand this. This results in a golden site version bump. Change-Id: I3989460575fa9c389233244683318a6cfded68fe