Bump http-server from 0.11.1 to 0.12.0

Bumps [http-server](https://github.com/http-party/http-server) from 0.11.1 to 0.12.0.
- [Release notes](https://github.com/http-party/http-server/releases)
- [Commits](http-party/http-server@0.11.1...v0.12.0)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -27,6 +27,6 @@
     "mathlive": "^0.32.1"
   },
   "devDependencies": {
-    "http-server": "^0.11.1"
+    "http-server": "^0.12.0"
   }
 }