Your requirements could not be resolved to an installable set of packages.
Problem 1
- typo3/testing-framework[8.0.0, ..., 8.0.6] require phpunit/phpunit ^10.1 -> found phpunit/phpunit[10.1.0, ..., 10.4.1] but it conflicts with your root composer.json require (^9.5.20).
- Root composer.json requires typo3/testing-framework ^8.0.0 -> satisfiable by typo3/testing-framework[8.0.0, ..., 8.0.6].