chore(deps): update dependency rollup to v2.50.0 (#1498)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package-lock.json

@@ -134,7 +134,7 @@
     "nyc": "15.1.0",
     "prettier": "2.1.2",
     "rimraf": "3.0.2",
-    "rollup": "2.49.0",
+    "rollup": "2.50.0",
     "rollup-plugin-commonjs": "10.1.0",
     "rollup-plugin-node-resolve": "5.2.0",
     "rollup-plugin-postcss": "4.0.0",