Bump rollup from 4.21.0 to 4.22.4

Bumps [rollup](https://github.com/rollup/rollup) from 4.21.0 to 4.22.4.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v4.21.0...v4.22.4)

---
updated-dependencies:
- dependency-name: rollup
  dependency-type: direct:production
...

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

package.json

@@ -41,7 +41,7 @@
     "postcss-import": "^16.1.0",
     "postcss-loader": "^8.1.1",
     "prettier": "^2.3.2",
-    "rollup": "^4.18.0",
+    "rollup": "^4.22.4",
     "rollup-plugin-postcss": "^4.0.2"
   }
 }