chore: bump marked from 4.2.12 to 6.0.0

Bumps [marked](https://github.com/markedjs/marked) from 4.2.12 to 6.0.0.
- [Release notes](https://github.com/markedjs/marked/releases)
- [Changelog](https://github.com/markedjs/marked/blob/master/.releaserc.json)
- [Commits](markedjs/marked@v4.2.12...v6.0.0)

---
updated-dependencies:
- dependency-name: marked
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -65,7 +65,7 @@
     "*.js": "eslint --fix"
   },
   "dependencies": {
-    "marked": "^4.2.12",
+    "marked": "^6.0.0",
     "medium-zoom": "^1.0.8",
     "opencollective-postinstall": "^2.0.2",
     "prismjs": "^1.29.0",