zeroconf: give inet_aton() str instead of bytes

All other uses of this function in this extension are already fixed (i.e. use
strings instead of bytes).

This was caught by pytype 2023.11.21 on Python 3.11.2.

hgext/zeroconf/Zeroconf.py

@@ -1859,7 +1859,7 b" if __name__ == '__main__':"
     info = ServiceInfo(
         b"_http._tcp.local.",
         b"My Service Name._http._tcp.local.",
-        socket.inet_aton(b"127.0.0.1"),
+        socket.inet_aton("127.0.0.1"),
         1234,
         0,
         0,