Reject relays running Tor 0.4.6.x

Similar to previous tickets (e.g. #40480 (closed) and #40559 (closed)) we should reject EOL versions at the directory authority level. This time the 0.4.6 series is concerned.

We started the whole process this week and are about to contact all relay operators with a valid contact information. Additionally, we sent an announcement to tor-relays@.