chore(package): update rollup to version 0.63.0

Author: greenkeeper[bot]

package.json

@@ -63,7 +63,7 @@
     "jest": "^23.2.0",
     "prettier": "^1.13.7",
     "regenerator-runtime": "^0.12.0",
-    "rollup": "^0.62.0",
+    "rollup": "^0.63.0",
     "rollup-plugin-babel": "^3.0.7",
     "rollup-plugin-flow": "^1.1.1",
     "rollup-plugin-node-builtins": "^2.1.2",