Patch to stop PHP notices in the token module

[ivangrynenko]

This patch needs testing

In the token module, when using token [node:book:parents:join-path] to create content that is assigned to a parnet book, PHP notice is getting triggered:
Notice: Trying to access array offset on value of type int in token_element_children() (line 608 of modules/contrib/token/token.module).token_element_children(Array, 1) (Line: 945) token_tokens('array', Array, Array, Array, Object) call_user_func_array('token_tokens', Array) (Line: 403) Drupal\Core\Extension\ModuleHandler->invokeAll('tokens', Array) (Line: 304) Drupal\Core\Utility\Token->generate('array', Array, Array, Array, Object) (Line: 1155) book_tokens('book', Array, Array, Array, Object) call_user_func_array('book_tokens', Array) (Line: 403) Drupal\Core\Extension\ModuleHandler->invokeAll('tokens', Array) (Line: 304) Drupal\Core\Utility\Token->generate('book', Array, Array, Array, Object) (Line: 1110) book_tokens('node', Array, Array, Array, Object) call_user_func_array('book_tokens', Array) (Line: 403) Drupal\Core\Extension\ModuleHandler->invokeAll('tokens', Array) (Line: 304) Drupal\Core\Utility\Token->generate('node', Array, Array, Array, Object) (Line: 196) Drupal\Core\Utility\Token->replace('resources/[node:book:parents:join-path]/[node:title]', Array, Array, Object) (Line: 228) Drupal\pathauto\PathautoGenerator->createEntityAlias(Object, 'update') (Line: 380) Drupal\pathauto\PathautoGenerator->updateEntityAlias(Object, 'update') (Line: 93) pathauto_entity_update(Object) call_user_func_array('pathauto_entity_update', Array) (Line: 403) Drupal\Core\Extension\ModuleHandler->invokeAll('entity_update', Array) (Line: 206) Drupal\Core\Entity\EntityStorageBase->invokeHook('update', Object) (Line: 843) Drupal\Core\Entity\ContentEntityStorageBase->invokeHook('update', Object) (Line: 535) Drupal\Core\Entity\EntityStorageBase->doPostSave(Object, 1) (Line: 728) Drupal\Core\Entity\ContentEntityStorageBase->doPostSave(Object, 1) (Line: 460) Drupal\Core\Entity\EntityStorageBase->save(Object) (Line: 837) Drupal\Core\Entity\Sql\SqlContentEntityStorage->save(Object) (Line: 395) Drupal\Core\Entity\EntityBase->save() (Line: 294) Drupal\node\NodeForm->save(Array, Object) call_user_func_array(Array, Array) (Line: 114) Drupal\Core\Form\FormSubmitter->executeSubmitHandlers(Array, Object) (Line: 52) Drupal\Core\Form\FormSubmitter->doSubmitForm(Array, Object) (Line: 593) Drupal\Core\Form\FormBuilder->processForm('node_report_content_edit_form', Array, Object) (Line: 321) Drupal\Core\Form\FormBuilder->buildForm(Object, Object) (Line: 91) Drupal\Core\Controller\FormController->getContentResult(Object, Object) call_user_func_array(Array, Array) (Line: 123) Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 573) Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 124) Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) (Line: 97) Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 151) Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 68) Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 57) Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 47) Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 106) Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 85) Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 50) Drupal\ban\BanMiddleware->handle(Object, 1, 1) (Line: 115) Drupal\shield\ShieldMiddleware->handle(Object, 1, 1) (Line: 47) Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 52) Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23) Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 708) Drupal\Core\DrupalKernel->handle(Object) (Line: 19)

This PR applies the patch #2 from https://www.drupal.org/project/token/issues/3154183