chore(deps-dev): bump eslint from 8.18.0 to 8.21.0

Bumps [eslint](https://github.com/eslint/eslint) from 8.18.0 to 8.21.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/main/CHANGELOG.md)
- [Commits](eslint/eslint@v8.18.0...v8.21.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -98,7 +98,7 @@
     "bundlewatch": "^0.3.3",
     "clean-css-cli": "^5.6.0",
     "cross-env": "^7.0.3",
-    "eslint": "^8.17.0",
+    "eslint": "^8.21.0",
     "eslint-config-xo": "^0.41.0",
     "eslint-plugin-import": "^2.26.0",
     "eslint-plugin-markdown": "^2.2.1",