Added missing new lines on JSON object file

test/fixtures/user.json

@@ -18,4 +18,4 @@
     "phone_validated?": false,
     "tfa_enabled?": false
   }
-}
+}

test/fixtures/users.json

@@ -39,4 +39,4 @@
       "tfa_enabled?": false
     }
   ]
-}
+}