build(deps-dev): bump prettier from 2.8.4 to 2.8.6 (#5172)

Bumps [prettier](https://github.com/prettier/prettier) from 2.8.4 to 2.8.6.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/main/CHANGELOG.md)
- [Commits](prettier/prettier@2.8.4...2.8.6)

Author: dependabot[bot]

package-lock.json

@@ -66,7 +66,7 @@
     "eslint-mdx": "^2.0.5",
     "eslint-plugin-mdx": "^2.0.5",
     "eslint-plugin-prettier": "^4.2.1",
-    "prettier": "^2.8.5",
+    "prettier": "^2.8.6",
     "remark-preset-lint-node": "^3.4.0",
     "remark-preset-prettier": "^2.0.1",
     "sharp": "^0.31.3",