Bump markdown-it from 8.4.1 to 12.3.2

Bumps [markdown-it](https://github.com/markdown-it/markdown-it) from 8.4.1 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@8.4.1...12.3.2)

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

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

Author: dependabot[bot]

package-lock.json

@@ -27,7 +27,7 @@
     "koa-session": "^5.8.1",
     "koa-static": "^5.0.0",
     "koa-views": "^6.1.4",
-    "markdown-it": "^8.4.1",
+    "markdown-it": "^12.3.2",
     "markdown-it-anchor": "^5.0.2",
     "markdown-it-decorate": "^1.2.2",
     "markdown-it-table-of-contents": "^0.4.3",