build(deps-dev): bump eslint-plugin-markdown from 2.2.0 to 2.2.1

Bumps [eslint-plugin-markdown](https://github.com/eslint/eslint-plugin-markdown) from 2.2.0 to 2.2.1.
- [Release notes](https://github.com/eslint/eslint-plugin-markdown/releases)
- [Changelog](https://github.com/eslint/markdown/blob/main/CHANGELOG.md)
- [Commits](eslint/markdown@v2.2.0...v2.2.1)

---
updated-dependencies:
- dependency-name: eslint-plugin-markdown
  dependency-version: 2.2.1
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

package.json

@@ -21,7 +21,7 @@
     "eslint": "7.26.0",
     "eslint-config-standard": "14.1.1",
     "eslint-plugin-import": "2.31.0",
-    "eslint-plugin-markdown": "2.2.0",
+    "eslint-plugin-markdown": "2.2.1",
     "eslint-plugin-node": "11.1.0",
     "eslint-plugin-promise": "4.3.1",
     "eslint-plugin-standard": "4.1.0",