Update Drupal core from 8.9.18 to 8.9.19 ( ~8.0 ) and remove committed patches

Problem/Motivation

There is a new Drupal core security release.
One of the patches on varbase_core prevents the upgrade

Drupal 8.9.19 was released 15 Sep 2021 at 18:56 EEST
https://www.drupal.org/project/drupal/releases/8.9.19

• Drupal core - Moderately critical - Cross Site Request Forgery - SA-CORE-2021-006
• Drupal core - Moderately critical - Cross Site Request Forgery - SA-CORE-2021-007
• Drupal core - Moderately critical - Access Bypass - SA-CORE-2021-008
• Drupal core - Moderately critical - Access Bypass - SA-CORE-2021-009
• Drupal core - Moderately critical - Access Bypass - SA-CORE-2021-010

Problem/Motivation

Remove the patch from #2996114: Argument 2 passed to Drupal\jsonapi\Routing\Routes::Drupal\jsonapi\Routing\{closure}() must be an instance of Drupal\jsonapi\ResourceType\ResourceType, NULL given

Temp Quick fix to update Drupal core

Remaining tasks

• ✅ File an issue about this project
• ✅ Remove the 2996114-99.patch and not to use the 2996114-124.patch or any back ported
• ✅ Testing to ensure no regression
• ❌ Automated unit/functional testing coverage
• ❌ Developer Documentation support on feature change/addition
• ❌ User Guide Documentation support on feature change/addition
• ✅ Code review from 1 Varbase core team member
• ✅ Full testing and approval
• ✅ Credit contributors
• ✅ Review with the product owner
• ✅ Quick Fix Release for varbase_core-8.8.37

User interface changes

• None

API changes

• None

Data model changes

• None