Merge pull request #2227 from webcomponents/renovate/marked-5.x

Update dependency marked to v5.1.0

Author: github-actions[bot]

docs/package-lock.json

@@ -13,7 +13,7 @@
   "devDependencies": {
     "clean-css-cli": "5.6.2",
     "handlebars": "4.7.7",
-    "marked": "5.0.4"
+    "marked": "5.1.0"
   },
   "wireit": {
     "build": {