Bump marked from 9.1.6 to 10.0.0

Bumps [marked](https://github.com/markedjs/marked) from 9.1.6 to 10.0.0.
- [Release notes](https://github.com/markedjs/marked/releases)
- [Changelog](https://github.com/markedjs/marked/blob/master/.releaserc.json)
- [Commits](markedjs/marked@v9.1.6...v10.0.0)

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

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

package.json

@@ -22,7 +22,7 @@
     "govuk-prototype-kit": "13.15.0",
     "gray-matter": "^4.0.3",
     "luxon": "^3.4.4",
-    "marked": "^9.1.6",
+    "marked": "^10.0.0",
     "marked-gfm-heading-id": "^3.1.1",
     "numeral": "^2.0.6",
     "passport": "^0.6.0",