chore(deps): bump highlight.js from 11.8.0 to 11.9.0

Bumps [highlight.js](https://github.com/highlightjs/highlight.js) from 11.8.0 to 11.9.0.
- [Release notes](https://github.com/highlightjs/highlight.js/releases)
- [Changelog](https://github.com/highlightjs/highlight.js/blob/main/CHANGES.md)
- [Commits](highlightjs/highlight.js@11.8.0...11.9.0)

---
updated-dependencies:
- dependency-name: highlight.js
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package-lock.json

@@ -4,7 +4,7 @@
   "private": true,
   "dependencies": {
     "@fortawesome/fontawesome-free": "^6.4.2",
-    "highlight.js": "^11.8.0",
+    "highlight.js": "^11.9.0",
     "katex": "^0.16.8",
     "uikit": "^3.17.0",
     "www-covidcast": "https://github.com/cmu-delphi/www-covidcast/releases/download/v3.2.9/www-covidcast-3.2.9.tgz",