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

Author: renovate[bot]

package.json

@@ -68,7 +68,7 @@
 		"dotenv": "17.4.2",
 		"eslint": "8.57.1",
 		"eslint-config-prettier": "10.1.8",
-		"eslint-plugin-functional": "6.6.3",
+		"eslint-plugin-functional": "9.0.4",
 		"husky": "9.1.7",
 		"prettier": "3.8.3",
 		"prettier-plugin-astro": "^0.14.0",