chore(deps): bump highlight.js from 11.5.1 to 11.6.0

Bumps [highlight.js](https://github.com/highlightjs/highlight.js) from 11.5.1 to 11.6.0.
- [Release notes](https://github.com/highlightjs/highlight.js/releases)
- [Changelog](https://github.com/highlightjs/highlight.js/blob/main/CHANGES.md)
- [Commits](highlightjs/highlight.js@11.5.1...11.6.0)

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

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

package.json

@@ -54,7 +54,7 @@
   },
   "dependencies": {
     "es6-promise": "4.2.8",
-    "highlight.js": "11.5.1",
+    "highlight.js": "11.6.0",
     "localforage": "1.10.0",
     "marked": "4.0.19",
     "primer-markdown": "4.0.0"