Your requirements could not be resolved to an installable set of packages.
Problem 1
- wyrihaximus/async-test-utilities dev-19bc0aec901c9df7c95bb273e7748f85b76760da requires wyrihaximus/test-utilities ^5.5.4 || ^6 -> satisfiable by wyrihaximus/test-utilities[5.5.4, 5.5.5, 5.5.6, 5.5.7].
- wyrihaximus/test-utilities[5.5.6, 5.5.7] require phpunit/phpunit ^9.6.10 -> satisfiable by phpunit/phpunit[9.6.10].
- wyrihaximus/test-utilities[5.5.4, 5.5.5] require phpunit/phpunit ^9.6.9 -> satisfiable by phpunit/phpunit[9.6.9, 9.6.10].
- You can only install one version of a package, so only one of these can be installed: phpunit/phpunit[9.0.0, 9.0.1, 9.0.2, 9.1.0, 9.1.1, 9.1.2, 9.1.3, 9.1.4, 9.1.5, 9.2.0, 9.2.1, 9.2.2, 9.2.3, 9.2.4, 9.2.5, 9.2.6, 9.3.0, 9.3.1, 9.3.2, 9.3.3, 9.3.4, 9.3.5, 9.3.6, 9.3.7, 9.3.8, 9.3.9, 9.3.10, 9.3.11, 9.4.0, 9.4.1, 9.4.2, 9.4.3, 9.4.4, 9.5.0, 9.5.1, 9.5.2, 9.5.3, 9.5.4, 9.5.5, 9.5.6, 9.5.7, 9.5.8, 9.5.9, 9.5.10, 9.5.11, 9.5.12, 9.5.13, 9.5.14, 9.5.16, 9.5.17, 9.5.18, 9.5.19, 9.5.20, 9.5.21, 9.5.22, 9.5.23, 9.5.24, 9.5.25, 9.5.26, 9.5.27, 9.5.28, 9.6.0, 9.6.1, 9.6.2, 9.6.3, 9.6.4, 9.6.5, 9.6.6, 9.6.7, 9.6.8, 9.6.9, 9.6.10, 10.2.6].
- wyrihaximus/async-test-utilities dev-19bc0aec901c9df7c95bb273e7748f85b76760da requires phpunit/phpunit ^10.2.6 -> satisfiable by phpunit/phpunit[10.2.6].
- Root composer.json requires wyrihaximus/async-test-utilities dev-19bc0aec901c9df7c95bb273e7748f85b76760da -> satisfiable by wyrihaximus/async-test-utilities[dev-19bc0aec901c9df7c95bb273e7748f85b76760da].