scylla/cloud.py: change default port

on inital implemetion we default the `server` port to 443 if
wasn't specified, it was decided that we should default it
to the default CQL SSL port (9142)

Author: fruch

cassandra/scylla/cloud.py

@@ -94,7 +94,7 @@ def contact_points(self):
     def get_server(self, data_center):
         address = data_center.get('server')
         address = address.split(":")
-        port = nth(address, 1, default=443)
+        port = nth(address, 1, default=9142)
         address = nth(address, 0)
         node_domain = data_center.get('nodeDomain')
         assert address and port and node_domain, "server or nodeDomain are missing"