build(deps): bump marked from 1.1.1 to 1.2.0

Bumps [marked](https://github.com/markedjs/marked) from 1.1.1 to 1.2.0.
- [Release notes](https://github.com/markedjs/marked/releases)
- [Commits](https://github.com/markedjs/marked/commits)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -44,7 +44,7 @@
     "jstransformer-handlebars": "^1.1.0",
     "junk": "^3.1.0",
     "lodash.defaultsdeep": "^4.6.1",
-    "marked": "^1.1.1",
+    "marked": "^1.2.0",
     "metalsmith": "^2.3.0",
     "metalsmith-collections": "^0.9.0",
     "metalsmith-discover-helpers": "^0.1.1",