Automated Project Update Bot fixes

This merge request was automatically created by the Project Update Bot. It contains the changes from run 11-199781.

tests/src/Kernel/GridStackFormatterTest.php

@@ -139,7 +139,7 @@ class GridStackFormatterTest extends BlazyKernelTestBase {
    * @return array
    *   An array of tested data.
    */
-  public function providerTestBuildSettings() {
+  public static function providerTestBuildSettings() {
     $data[] = [
       [],
       FALSE,