fix: e2e tests

Author: dbale-altoros

e2e/06-formatters/.solhint.json

@@ -1,6 +1,7 @@
 {
   "extends": "solhint:all",
   "rules": {
-    "use-natspec": "off"
+    "use-natspec": "off",
+    "no-unused-private-funcs": "off"
   }
 }