Bump npm from 11.6.3 to 11.6.4 in /demos/moderator

Bumps [npm](https://github.com/npm/cli) from 11.6.3 to 11.6.4.
- [Release notes](https://github.com/npm/cli/releases)
- [Changelog](https://github.com/npm/cli/blob/latest/CHANGELOG.md)
- [Commits](npm/cli@v11.6.3...v11.6.4)

---
updated-dependencies:
- dependency-name: npm
  dependency-version: 11.6.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

demos/moderator/package.json

@@ -17,7 +17,7 @@
   },
   "license": "MIT",
   "dependencies": {
-    "npm": "^11.6.3",
+    "npm": "^11.6.4",
     "package.json": "^2.0.1",
     "parcel": "^2.16.1",
     "preact": "10.27.2",