Fix test_json2c_no_json() (#20756)

lib/python/qmk/tests/minimal_info.json

@@ -4,7 +4,7 @@
     "layouts": {
         "LAYOUT": {
             "layout": [
-                { "label": "KC_A", "matrix": [0, 0], "x": 0, "y": 0 }
+                {"label": "KC_A", "matrix": [0, 0], "x": 0, "y": 0}
             ]
         }
     }