add infection to composer allow plugins

Author: Syndesi

composer.json

@@ -59,5 +59,10 @@
         "yml:lint": "docker run --rm -it -v $(pwd):/data cytopia/yamllint .",
         "markdown:lint": "docker run --rm -v $(pwd):/work tmknom/markdownlint '**/*.md' --ignore vendor",
         "docs:serve": "docker run --rm -d -p 3000:3000 -v $(pwd)/docs:/docs sujaykumarh/docsify serve"
+    },
+    "config": {
+        "allow-plugins": {
+            "infection/extension-installer": true
+        }
     }
 }