Bump highlight.js from 9.18.1 to 10.4.1

Bumps [highlight.js](https://github.com/highlightjs/highlight.js) from 9.18.1 to 10.4.1.
- [Release notes](https://github.com/highlightjs/highlight.js/releases)
- [Changelog](https://github.com/highlightjs/highlight.js/blob/master/CHANGES.md)
- [Commits](highlightjs/highlight.js@9.18.1...10.4.1)

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

Author: dependabot[bot]

package-lock.json

@@ -34,7 +34,7 @@
     },
     "dependencies": {
         "@loadable/component": "^5.12.0",
-        "highlight.js": "^9.17.1",
+        "highlight.js": "^10.4.1",
         "react": "^16.12.0",
         "react-dom": "^16.12.0",
         "react-helmet": "^5.2.1",