fix: removed integration tests for Tutor versions less than 20.0.0.

Author: magajh

CHANGELOG.md

@@ -16,6 +16,7 @@ Please do not update the unreleased notes.
 ### Changed
 
 - Pin Tutor integration-tests GitHub Action version to avoid integration test failures.
+- Remove integration tests for Tutor<20.0.0
 
 ## [v12.2.0](https://github.com/eduNEXT/eox-core/compare/v12.1.0...v12.2.0) - (2025-10-13)