Update dependency eslint-plugin-unused-imports to v4

Author: renovate[bot]

web/package.json

@@ -30,7 +30,7 @@
     "eslint-config-next": "14.2.18",
     "eslint-config-prettier": "^8.10.0",
     "eslint-plugin-prettier": "^5.2.6",
-    "eslint-plugin-unused-imports": "^3.2.0",
+    "eslint-plugin-unused-imports": "^4.0.0",
     "postcss": "^8.5.3",
     "tailwindcss": "^3.4.17",
     "typescript": "^5.8.3"