update packages

Author: Dominik Liebler

composer.json

@@ -15,12 +15,12 @@
         "ext-json": "*"
     },
     "require-dev": {
-        "phpunit/phpunit": "^8",
+        "phpunit/phpunit": "^9",
         "squizlabs/php_codesniffer": "^3",
         "flyeralarm/php-code-validator": "^2.2",
-        "vimeo/psalm": "^3.4",
-        "psalm/plugin-phpunit": "^0.7.0",
-        "rector/rector": "^0.6.1"
+        "vimeo/psalm": "^3",
+        "psalm/plugin-phpunit": "*",
+        "rector/rector": "*"
     },
     "autoload": {
         "classmap": ["Behavioral", "Creational", "Structural", "More"]