chore(deps): update dependency infection/infection to ^0.31.0

Author: renovate[bot]

composer.json

@@ -38,7 +38,7 @@
     },
     "require-dev": {
         "cdn77/coding-standard": "^7.0",
-        "infection/infection": "^0.29.0",
+        "infection/infection": "^0.31.0",
         "kafkiansky/phpclick": "^0.2.1",
         "nyholm/psr7": "^1.2",
         "php-http/message-factory": "^1.1",