fix(widget): add optional chaining for lock property access

Added optional chaining operator (?.) to prevent potential errors when accessing the lock property in the update_data_version widget, ensuring safe execution when the updates object or its lock property might be undefined.

Author: alex-render

core/area_maintenance/widgets/update_data_version/js/render_update_data_version.js

@@ -249,7 +249,7 @@ const get_content_data = async function(self) {
 					parent			: body_response
 				})
 				break;
-			case (updates.lock === true):
+			case (updates?.lock === true):
 				break
 			default:
 				// create the submit button