Update dependency eslint to v9.21.0 (#119)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -119,7 +119,7 @@
     "@vitest/coverage-istanbul": "^3.0.4",
     "@vue/compiler-sfc": "3.5.13",
     "dotenv-cli": "8.0.0",
-    "eslint": "9.18.0",
+    "eslint": "9.21.0",
     "execa": "9.5.2",
     "husky": "9.1.7",
     "lint-staged": "15.4.2",