chore(deps): update dependency eslint to v9

Author: renovate[bot]

package.json

@@ -30,7 +30,7 @@
     "@typescript-eslint/eslint-plugin": "^8.0.0",
     "@typescript-eslint/parser": "^8.0.0",
     "@vitest/coverage-v8": "^3.0.0",
-    "eslint": "^8.57.0",
+    "eslint": "^9.0.0",
     "eslint-plugin-svelte": "^2.43.0",
     "eslint-plugin-unused-imports": "^4.0.0",
     "happy-dom": "^16.0.0",