add maintainer value to info.json (#13411)

Configurator isn't using the data in this file, and I think this may be why...

keyboards/ramonimbao/chevron/info.json

@@ -1,7 +1,7 @@
 {
     "keyboard_name": "Chevron",
     "url": "",
-    "maintainer": "",
+    "maintainer": "ramonimbao",
     "width": 14.5,
     "height": 5,
     "layouts": {