Bump rollup from 4.21.0 to 4.21.1

Bumps [rollup](https://github.com/rollup/rollup) from 4.21.0 to 4.21.1.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v4.21.0...v4.21.1)

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

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

package.json

@@ -64,7 +64,7 @@
     "jest-environment-jsdom": "^29.2.2",
     "jshint": "2.13.6",
     "jshint-stylish": "2.2.1",
-    "rollup": "^4.21.0",
+    "rollup": "^4.21.1",
     "rollup-plugin-commonjs": "10.1.0",
     "rollup-plugin-node-resolve": "5.2.0"
   }