Your lock file does not contain a compatible set of packages. Please run composer update. Problem 1 - symfony/filesystem is locked to version v7.0.0 and an update of this package was not requested. - symfony/filesystem v7.0.0 requires php >=8.2 -> your php version (8.1.2) does not satisfy that requirement. Problem 2 - symfony/string is locked to version v7.0.0 and an update of this package was not requested. - symfony/string v7.0.0 requires php >=8.2 -> your php version (8.1.2) does not satisfy that requirement. Problem 3 - symfony/var-exporter is locked to version v7.0.0 and an update of this package was not requested. - symfony/var-exporter v7.0.0 requires php >=8.2 -> your php version (8.1.2) does not satisfy that requirement. Problem 4 - symfony/process is locked to version v7.0.0 and an update of this package was not requested. - symfony/process v7.0.0 requires php >=8.2 -> your php version (8.1.2) does not satisfy that requirement. Problem 5 - symfony/filesystem v7.0.0 requires php >=8.2 -> your php version (8.1.2) does not satisfy that requirement. - infection/infection 0.27.8 requires symfony/filesystem ^5.4 || ^6.0 || ^7.0 -> satisfiable by symfony/filesystem[v7.0.0]. - infection/infection is locked to version 0.27.8 and an update of this package was not requested.