fix grpc_tls port value in config.json.j2

Author: garry-t

templates/config.json.j2

@@ -35,7 +35,7 @@
         "grpc": "{{ consul_addresses.grpc }}",
         {% endif %}
         {% if consul_version is version_compare('1.14.0', '>=') %}
-        "grpc_tls": "{{ consul_addresses.grpc_tls }}",
+        "grpc_tls": "{{ consul_ports.grpc_tls }}",
         {% endif %}
     },
     {## Ports Used ##}