Update dependency @typescript-eslint/eslint-plugin to v8

Author: renovate[bot]

frontend/package.json

@@ -42,7 +42,7 @@
     "@types/node": "^22.15.30",
     "@types/react": "^18.2.56",
     "@types/react-dom": "^18.2.19",
-    "@typescript-eslint/eslint-plugin": "^6.21.0",
+    "@typescript-eslint/eslint-plugin": "^8.0.0",
     "@typescript-eslint/parser": "^6.21.0",
     "@vitejs/plugin-react": "^4.2.1",
     "autoprefixer": "^10.4.17",