Bump markdown-it from 8.4.2 to 12.3.2 in /test/site/.dynamic

Bumps [markdown-it](https://github.com/markdown-it/markdown-it) from 8.4.2 to 12.3.2.
- [Release notes](https://github.com/markdown-it/markdown-it/releases)
- [Changelog](https://github.com/markdown-it/markdown-it/blob/master/CHANGELOG.md)
- [Commits](markdown-it/markdown-it@8.4.2...12.3.2)

---
updated-dependencies:
- dependency-name: markdown-it
  dependency-type: direct:development
...

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

Author: dependabot[bot]

test/site/.dynamic/package-lock.json

@@ -11,6 +11,6 @@
   "license": "AGPL-3.0-or-later",
   "devDependencies": {
     "cows": "^2.1.0",
-    "markdown-it": "^8.4.2"
+    "markdown-it": "^12.3.2"
   }
 }