feat: upgrade marked from 2.0.0 to 12.0.1

Snyk has created this PR to upgrade marked from 2.0.0 to 12.0.1.

See this package in npm:
https://www.npmjs.com/package/marked

See this project in Snyk:
https://app.snyk.io/org/affiliatedkat/project/918f4638-e7ed-4f21-9848-5fc69bf20b34?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -43,7 +43,7 @@
     "jstransformer-handlebars": "^1.1.0",
     "junk": "^3.1.0",
     "lodash.defaultsdeep": "^4.6.1",
-    "marked": "^2.0.0",
+    "marked": "^12.0.1",
     "metalsmith": "^2.3.0",
     "metalsmith-collections": "^0.9.0",
     "metalsmith-discover-helpers": "^0.1.1",