chore(deps-dev): bump eslint from 7.28.0 to 7.29.0 in /docs

Bumps [eslint](https://github.com/eslint/eslint) from 7.28.0 to 7.29.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v7.28.0...v7.29.0)

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

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

docs/package.json

@@ -40,7 +40,7 @@
     ]
   },
   "devDependencies": {
-    "eslint": "^7.25.0",
+    "eslint": "^7.29.0",
     "eslint-config-prettier": "^8.3.0",
     "eslint-plugin-mdx": "^1.13.0",
     "eslint-plugin-react": "^7.23.2",