chore(deps): update dependency rollup to v4

Author: renovate[bot]

ember-file-upload/package.json

@@ -84,7 +84,7 @@
     "eslint-plugin-n": "^14.0.0",
     "eslint-plugin-prettier": "^5.0.0",
     "prettier": "^3.0.3",
-    "rollup": "^3.29.5",
+    "rollup": "^4.0.0",
     "tracked-built-ins": "^4.0.0",
     "typescript": "~5.6.0",
     "webpack": "^5.94.0"