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/EmptyParagraphKillerFilterTest.php

@@ -57,7 +57,7 @@ class EmptyParagraphKillerFilterTest extends KernelTestBase {
    *
    * @see testEmptyParagraphKillerFilter()
    */
-  public function emptyParagraphKillerFilterDataProvider(): array {
+  public static function emptyParagraphKillerFilterDataProvider(): array {
     return [
       [
         '<p>Test content</p>',