Fixing checkbox rendering

Author: jessehouwing

BuildTasks/ExtensionVersion/v4/task.json

@@ -21,7 +21,7 @@
   "minimumAgentVersion": "2.206.1",
   "groups": [
     {
-      "": "extension",
+      "name": "extension",
       "displayName": "Extension",
       "isExpanded": true
     },