chore(package): update rollup to version 1.27.13

Closes #60

Author: greenkeeper[bot]

package.json

@@ -50,7 +50,7 @@
     "prop-types": "^15.7.2",
     "react": "^16.8.0",
     "react-dom": "^16.8.0",
-    "rollup": "1.27.9",
+    "rollup": "1.27.13",
     "rollup-plugin-babel": "4.3.3",
     "rollup-plugin-commonjs": "10.1.0",
     "rollup-plugin-copy": "3.1.0",