Add mod_spam_reporting to prosody

roles/prosody/templates/prosody.cfg.lua.j2

@@ -53,6 +53,7 @@ modules_enabled = {
             "cloud_notify"; -- Enable push messaging
             "smacks"; -- Enable XEP-0198: Stream Management
             "privacy_lists"; -- Enable XEP-0016: Privacy Lists
+            "spam_reporting"; -- Enable XEP-0377: spam reporting
 
     -- System-level modules
             "net_proxy";