Failed to CreateArtifact: Received non-retryable error: Failed request: (409) Conflict: an artifact with this name already exists on the workflow run

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/phpunit ^12.2 -> satisfiable by phpunit/phpunit[12.5.8, ..., 12.5.15]. - phpunit/phpunit[12.5.8, ..., 12.5.15] require php >=8.3 -> your php version (8.2.30) does not satisfy that requirement.