Your requirements could not be resolved to an installable set of packages.
Problem 1
- Root composer.json requires slam/php-cs-fixer-extensions ^3.10.0 -> satisfiable by slam/php-cs-fixer-extensions[v3.10.0].
- slam/php-cs-fixer-extensions v3.10.0 requires php ~8.2.0 || ~8.3.0 -> your php version (8.1.25) does not satisfy that requirement.
Problem 2
- Root composer.json requires slam/php-debug-r ^1.9.0 -> satisfiable by slam/php-debug-r[v1.9.0].
- slam/php-debug-r v1.9.0 requires php ~8.2.0 || ~8.3.0 -> your php version (8.1.25) does not satisfy that requirement.
Problem 3
- Root composer.json requires slam/phpstan-extensions ^6.1.0 -> satisfiable by slam/phpstan-extensions[v6.1.0].
- slam/phpstan-extensions v6.1.0 requires php ~8.2.0 || ~8.3.0 -> your php version (8.1.25) does not satisfy that requirement.