Bump marked from 0.6.1 to 4.0.10

Bumps [marked](https://github.com/markedjs/marked) from 0.6.1 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@v0.6.1...v4.0.10)

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

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

package.json

@@ -23,7 +23,7 @@
         "gatsby-transformer-remark": "2.8.14",
         "js-yaml": "3.12.2",
         "lodash": "4.17.11",
-        "marked": "0.6.1",
+        "marked": "4.0.10",
         "moment": "2.23.0",
         "moment-strftime": "0.5.0",
         "node-sass": "4.14.0",