Bump to latest test utilities

Author: WyriHaximus

composer.json

@@ -13,7 +13,7 @@
         "php": "^7.4"
     },
     "require-dev": {
-        "wyrihaximus/test-utilities": "^2.7"
+        "wyrihaximus/test-utilities": "^2.9"
     },
     "config": {
         "platform": {