chore(deps): update dependency rollup to v4

Author: renovate[bot]

package.json

@@ -47,7 +47,7 @@
     "typescript": "^4.2.3"
   },
   "peerDependencies": {
-    "rollup": "^2"
+    "rollup": "^2 || ^4.0.0"
   },
   "optionalDependencies": {
     "@babel/core": "^7",