6 files declare their use of AjaxResponseSubscriber in Drupal 10

AjaxResponseTest.php in core/tests/Drupal/Tests/Core/Ajax/AjaxResponseTest.php

AreaDisplayLinkTest.php in core/modules/views/tests/src/Kernel/Handler/AreaDisplayLinkTest.php

CommandsTest.php in core/tests/Drupal/KernelTests/Core/Ajax/CommandsTest.php

DisplayLink.php in core/modules/views/src/Plugin/views/area/DisplayLink.php

ViewAjaxController.php in core/modules/views/src/Controller/ViewAjaxController.php

ViewUI.php in core/modules/views_ui/src/ViewUI.php