Constrain lowest PHPParser version to 4.13.0

Author: ondrejmirtes

composer.json

@@ -11,6 +11,7 @@
 	},
 	"require-dev": {
 		"beberlei/assert": "^3.3.0",
+		"nikic/php-parser": "^4.13.0",
 		"php-parallel-lint/php-parallel-lint": "^1.2",
 		"phpstan/phpstan-phpunit": "^1.0",
 		"phpstan/phpstan-strict-rules": "^1.0",