update phpunit

Author: Guite

composer.json

@@ -33,7 +33,7 @@
         "phpstan/extension-installer": "1.3.1",
         "phpstan/phpstan": "1.10.34",
         "phpstan/phpstan-symfony": "1.3.2",
-        "phpunit/phpunit": "9.6.12",
+        "phpunit/phpunit": "9.6.33",
         "roave/security-advisories": "dev-latest"
     },
     "suggest": {