Bump @microsoft/api-extractor from 7.47.8 to 7.47.9 in /micromark

Bumps [@microsoft/api-extractor](https://github.com/microsoft/rushstack/tree/HEAD/apps/api-extractor) from 7.47.8 to 7.47.9.
- [Changelog](https://github.com/microsoft/rushstack/blob/main/apps/api-extractor/CHANGELOG.md)
- [Commits](https://github.com/microsoft/rushstack/commits/@microsoft/api-extractor_v7.47.9/apps/api-extractor)

---
updated-dependencies:
- dependency-name: "@microsoft/api-extractor"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

micromark/package.json

@@ -31,7 +31,7 @@
     "README.md"
   ],
   "devDependencies": {
-    "@microsoft/api-extractor": "7.47.8",
+    "@microsoft/api-extractor": "7.47.9",
     "micromark": "4.0.0",
     "micromark-extension-directive": "3.0.1",
     "micromark-extension-gfm-autolink-literal": "2.1.0",