Update SSL cert rc.uab.edu

The SSL cert is expiring on 2025-10-28.

$ openssl s_client -connect rc.uab.edu:443 2>/dev/null | openssl x509 -noout -dates
notBefore=Oct 28 00:00:00 2024 GMT
notAfter=Oct 28 23:59:59 2025 GMT

Mike already placed the updated cert in /data/rc/backup/certs/rc.uab.edu