chore(config): bump eslint in /packages/config in the development group

Bumps the development group in /packages/config with 1 update: [eslint](https://github.com/eslint/eslint).


Updates `eslint` from 9.6.0 to 9.12.0
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/main/CHANGELOG.md)
- [Commits](eslint/eslint@v9.6.0...v9.12.0)

---
updated-dependencies:
- dependency-name: eslint
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: development
...

Signed-off-by: dependabot[bot] <[email protected]>

packages/config/package.json

@@ -6,7 +6,7 @@
     "@typescript-eslint/eslint-plugin": "^8.8.0",
     "@typescript-eslint/parser": "^8.8.0",
     "@vue/tsconfig": "^0.5.1",
-    "eslint": "^9.11.1",
+    "eslint": "^9.12.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-prettier": "^5.2.1",
     "prettier": "^3.3.3",