Give some fedora dummy fas credentials to the badges backend.

roles/badges-backend/templates/badges-awarder.py

@@ -22,5 +22,11 @@ config = {
             issuer_contact='badges@fedoraproject.org',
         ),
     },
-}
 
+    # The badges backend (fedmsg-hub) uses this to build a fas cache of ircnicks
+    # to fas usernames so it can act appropriately on certain message types.
+    "fas_credentials": {
+        "username": "${fedoraDummyUser}",
+        "password": "${fedoraDummyUserPassword}",
+    },
+}