Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires typo3/cms-core ^13.4, found typo3/cms-core[v13.4.0] but these were not loaded, likely because it conflicts with another require. Problem 2 - typo3/testing-framework is fixed to 9999999-dev (lock file version) by a partial update but that version is rejected by your minimum-stability. Make sure you list it as an argument for the update command. Problem 3 - saschaegerer/phpstan-typo3 is locked to version 1.10.2 and an update of this package was not requested. - saschaegerer/phpstan-typo3 1.10.2 requires typo3/cms-core ^11.5 || ^12.4 || ^13.0 -> found typo3/cms-core[v11.5.0, ..., v11.5.41, v12.4.0, ..., v12.4.22, v13.0.0, ..., v13.4.0] but these were not loaded, likely because it conflicts with another require. Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.

Process completed with exit code 2.

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires typo3/cms-core ^13.4, found typo3/cms-core[v13.4.0] but these were not loaded, likely because it conflicts with another require. Problem 2 - typo3/testing-framework is fixed to 9999999-dev (lock file version) by a partial update but that version is rejected by your minimum-stability. Make sure you list it as an argument for the update command. Problem 3 - saschaegerer/phpstan-typo3 is locked to version 1.10.2 and an update of this package was not requested. - saschaegerer/phpstan-typo3 1.10.2 requires typo3/cms-core ^11.5 || ^12.4 || ^13.0 -> found typo3/cms-core[v11.5.0, ..., v11.5.41, v12.4.0, ..., v12.4.22, v13.0.0, ..., v13.4.0] but these were not loaded, likely because it conflicts with another require. Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.