Fix error on integer port

Sometimes the port is configured as an `int`

Author: beruic

sql_server/pyodbc/base.py

@@ -264,7 +264,7 @@ def get_new_connection(self, conn_params):
 
             if ms_drivers.match(driver):
                 if port:
-                    host = ','.join((host,port))
+                    host = ','.join((host, str(port)))
                 cstr_parts['SERVER'] = host
             elif options.get('host_is_server', False):
                 if port: