chore(deps): update dependency eslint-plugin-functional to v9

Author: renovate[bot]

package.json

@@ -49,7 +49,7 @@
 		"dotenv": "16.5.0",
 		"eslint": "7.32.0",
 		"eslint-config-prettier": "10.1.2",
-		"eslint-plugin-functional": "3.7.2",
+		"eslint-plugin-functional": "9.0.1",
 		"ethereum-waffle": "3.4.4",
 		"husky": "7.0.4",
 		"npm-run-all2": "5.0.2",