Upgrade: Bump markdownlint-cli from 0.27.1 to 0.28.1

Bumps [markdownlint-cli](https://github.com/igorshubovych/markdownlint-cli) from 0.27.1 to 0.28.1.
- [Release notes](https://github.com/igorshubovych/markdownlint-cli/releases)
- [Commits](igorshubovych/markdownlint-cli@v0.27.1...v0.28.1)

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

Author: dependabot-preview[bot]

package.json

@@ -54,7 +54,7 @@
     "hexo-server": "^2.0.0",
     "hexo-util": "^2.0.0",
     "json2yaml": "^1.1.0",
-    "markdownlint-cli": "^0.27.0",
+    "markdownlint-cli": "^0.28.1",
     "marked": "^2.0.0",
     "md-2-json": "^2.0.0",
     "mkdirp": "^1.0.2",