Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires ergebnis/phpstan-rules ^1.1, found ergebnis/phpstan-rules[dev-fix/final-in-abstract-class, dev-dependabot/composer/ergebnis/phpunit-slow-test-detector-2.4.0, dev-main, 0.1.0, ..., 0.15.3, 1.0.0, 2.0.0, 2.1.0] but it does not match the constraint. Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.