sshlog doesn't work on Debian 13 (Trixie)

- sshlogd v1.1.0 (same behaviour with 1.0.0)
- Debian 13 (Trixie), kernel 6.12.74+deb13+1-amd64
- OpenSSH 10.0p1-7+deb13u1: sshd-session child (/usr/lib/openssh/sshd-session)
- Symptom: the events are visible in --debug but username/tty_id always empty and user_id: -1, no action taken
- Possible cause: sshlogd does not resolve user/TTY correctly with new process model of OpenSSH 9.8+