Merge pull request #33 from badsaarow/snyk-upgrade-9561802b931cfa5eb2e30867eabe4901

[Snyk] Upgrade rollup from 1.7.0 to 3.2.3

Author: badsaarow

package.json

@@ -63,7 +63,7 @@
     "react": "^15.1.0",
     "react-dom": "^15.1.0",
     "require-dir": "^0.3.0",
-    "rollup": "^1.7.0",
+    "rollup": "^3.2.3",
     "rollup-plugin-commonjs": "^9.2.1",
     "rollup-plugin-terser": "^5.0.0",
     "should": "^9.0.0",