Bump markdownlint-cli2 from 0.18.0 to 0.18.1

Bumps [markdownlint-cli2](https://github.com/DavidAnson/markdownlint-cli2) from 0.18.0 to 0.18.1.
- [Changelog](https://github.com/DavidAnson/markdownlint-cli2/blob/main/CHANGELOG.md)
- [Commits](DavidAnson/markdownlint-cli2@v0.18.0...v0.18.1)

---
updated-dependencies:
- dependency-name: markdownlint-cli2
  dependency-version: 0.18.1
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -8,7 +8,7 @@
     "@11ty/eleventy": "2.0.1",
     "@11ty/eleventy-plugin-directory-output": "1.0.1",
     "@11ty/eleventy-plugin-syntaxhighlight": "5.0.1",
-    "markdownlint-cli2": "0.18.0"
+    "markdownlint-cli2": "0.18.1"
   },
   "scripts": {
     "build": "npx markdownlint-cli2 && npx @11ty/eleventy",