log.dat: Fix bug13762 - ssh logins not shown in system logs

log.dat: Fix bug13762 - ssh logins not shown in system logs

- With the update of openssh to version 9.8 in CU187 the daemon was changed from sshd to
   sshd-session. Therefore the log.dat no longer finds any info related to the logins.
- This updates the section regex to look for both sshd and sshd-session.
- Tested out on my vm system and confirmed to work.
- This fix will make available all previous log info for sshd-session in the messages log
   as it continued to be stored, just could not be read by the WUI system log.

Fixes: bug13762
Tested-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Tested-by: Bernhard Bitsch <bbitsch@ipfire.org>
Reviewed-by: Bernhard Bitsch <bbitsch@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>