Bump rollup from 4.50.0 to 4.50.1 in /ui/extensions/hello

Bumps [rollup](https://github.com/rollup/rollup) from 4.50.0 to 4.50.1.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v4.50.0...v4.50.1)

---
updated-dependencies:
- dependency-name: rollup
  dependency-version: 4.50.1
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

ui/extensions/hello/package-lock.json

@@ -37,7 +37,7 @@
     "jest": "^30.1.3",
     "jest-environment-jsdom": "^30.1.2",
     "postcss": "^8.5.6",
-    "rollup": "4.50.0",
+    "rollup": "4.50.1",
     "rollup-plugin-postcss": "^4.0.2"
   },
   "jest": {