Update dependencies.

Author: adriansuter

composer.json

@@ -38,10 +38,10 @@
     "nikic/php-parser": "^4.4"
   },
   "require-dev": {
-    "phpstan/phpstan": "^1.4",
-    "phpunit/phpunit": "^9.5",
+    "phpstan/phpstan": "^1.12",
+    "phpunit/phpunit": "^9.6",
     "phpspec/prophecy-phpunit": "^2.0",
-    "squizlabs/php_codesniffer": "^3.6"
+    "squizlabs/php_codesniffer": "^3.10"
   },
   "scripts": {
     "test": [