AL9 shows the same 1.4.3 version as AL8:
# clamd --version
ClamAV 1.4.3/27778/Tue Sep 30 08:29:52 2025
And @oversser is correct, there are No, None, Zilch, Zero, Nadda more updates for CentOS 7 since it's past EOL, and has been moved to the archive vault.
You need to update the server to AL8, if you want updates.