Bump @rails/ujs in /demo in the all-demo group across 1 directory

Bumps the all-demo group with 1 update in the /demo directory: [@rails/ujs](https://github.com/rails/rails).


Updates `@rails/ujs` from 7.1.502 to 7.1.600
- [Release notes](https://github.com/rails/rails/releases)
- [Commits](https://github.com/rails/rails/commits)

---
updated-dependencies:
- dependency-name: "@rails/ujs"
  dependency-version: 7.1.600
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all-demo
...

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

Author: dependabot[bot]

demo/package-lock.json

@@ -6,7 +6,7 @@
     "@primer/css": "^22.0.2",
     "@primer/primitives": "^11.2.0",
     "@rails/actioncable": "^8.0.201",
-    "@rails/ujs": "^7.1.502",
+    "@rails/ujs": "^7.1.600",
     "turbolinks": "^5.2.0"
   },
   "devDependencies": {