Bump highlight.js from 9.18.3 to 10.4.1

Bumps [highlight.js](https://github.com/highlightjs/highlight.js) from 9.18.3 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/commits/10.4.1)

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

package.json

@@ -194,7 +194,7 @@
 		"grapheme-splitter": "^1.0.4",
 		"gridfs-stream": "^1.1.1",
 		"he": "^1.2.0",
-		"highlight.js": "^9.18.3",
+		"highlight.js": "^10.4.1",
 		"iconv-lite": "^0.4.24",
 		"image-size": "^0.6.3",
 		"imap": "^0.8.19",