Bump highlight.js from 9.15.8 to 9.18.5

Bumps [highlight.js](https://github.com/highlightjs/highlight.js) from 9.15.8 to 9.18.5.
- [Release notes](https://github.com/highlightjs/highlight.js/releases)
- [Changelog](https://github.com/highlightjs/highlight.js/blob/9.18.5/CHANGES.md)
- [Commits](https://github.com/highlightjs/highlight.js/compare/9.15.8...9.18.5)
Signed-off-by: Ndependabot[bot] <support@github.com>

package-lock.json

@@ -6065,9 +6065,9 @@
       "dev": true
     },
     "highlight.js": {
-      "version": "9.15.8",
-      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-9.15.8.tgz",
-      "integrity": "sha512-RrapkKQWwE+wKdF73VsOa2RQdIoO3mxwJ4P8mhbI6KYJUraUHRKM5w5zQQKXNk0xNL4UVRdulV9SBJcmzJNzVA==",
+      "version": "9.18.5",
+      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-9.18.5.tgz",
+      "integrity": "sha512-a5bFyofd/BHCX52/8i8uJkjr9DYwXIPnM/plwI6W7ezItLGqzt7X2G2nXuYSfsIJdkwwj/g9DG1LkcGJI/dDoA==",
       "dev": true
     },
     "hmac-drbg": {