Bump markdown-it from 10.0.0 to 12.3.2

Bumps [markdown-it](https://github.com/markdown-it/markdown-it) from 10.0.0 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@10.0.0...12.3.2)

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

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

Author: dependabot[bot]

package-lock.json

@@ -24,7 +24,7 @@
 		"inline-source": "~7.1.0",
 		"jstransformer-ejs": "~0.2.0",
 		"mark.js": "~8.11.1",
-		"markdown-it": "~10.0.0",
+		"markdown-it": "~12.3.2",
 		"metalsmith": "~2.3.0",
 		"metalsmith-assets": "~0.1.0",
 		"metalsmith-autoprefixer": "~1.1.2",