cssn log field should also report SNI server name for TLS over QUIC

[ywkaras]

The cssn log field is the Client SNI server name that is (optionally) in the TLS Hello. It currently only reports the server name for TLS running over TCP.

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. Marking it stale to flag it for further consideration by the community.

[maskit]

This was supported.