Update rfc7643-8.7.1-schema-group.json

Author: mRuggi

samples/rfc7643-8.7.1-schema-group.json

@@ -9,7 +9,7 @@
             "type": "string",
             "multiValued": false,
             "description": "A human-readable name for the Group. REQUIRED.",
-            "required": false,
+            "required": true,
             "caseExact": false,
             "mutability": "readWrite",
             "returned": "default",