Bump highlight.js from 9.18.1 to 10.4.1 (#104)

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](https://github.com/highlightjs/highlight.js/compare/9.18.1...10.4.1)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -32,7 +32,7 @@
     "ejs": "^3.0.2",
     "gh-pages": "^2.2.0",
     "glob": "^7.1.6",
-    "highlight.js": "^9.18.1",
+    "highlight.js": "^10.4.1",
     "live-server": "^1.2.1",
     "mkdirp": "^1.0.4",
     "postcss-calc": "^7.0.2",