Issue #3482974 by project update bot: Automated Drupal 11 compatibility fixes for gridstack

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,

tests/src/Kernel/GridStackManagerTest.php

@@ -143,7 +143,7 @@ class GridStackManagerTest extends BlazyKernelTestBase {
    * @return array
    *   An array of tested data.
    */
-  public function providerTestGridStackBuild() {
+  public static function providerTestGridStackBuild() {
     $data[] = [
       FALSE,
       [],