Bump marked from 1.1.0 to 4.0.10 in /ploneconf2020-grace_under_fire

Bumps [marked](https://github.com/markedjs/marked) from 1.1.0 to 4.0.10.
- [Release notes](https://github.com/markedjs/marked/releases)
- [Changelog](https://github.com/markedjs/marked/blob/master/.releaserc.json)
- [Commits](markedjs/marked@v1.1.0...v4.0.10)

---
updated-dependencies:
- dependency-name: marked
  dependency-type: direct:development
...

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

Author: dependabot[bot]

ploneconf2020-grace_under_fire/package-lock.json

@@ -51,7 +51,7 @@
     "gulp-tap": "^2.0.0",
     "gulp-zip": "^5.0.1",
     "highlight.js": "^10.0.3",
-    "marked": "^1.1.0",
+    "marked": "^4.0.10",
     "node-qunit-puppeteer": "^2.0.1",
     "qunit": "^2.10.0",
     "rollup": "^2.26.4",