(#7044) - chore(package): update rollup to version 0.55.1

Author: greenkeeper[bot]

package.json

@@ -99,7 +99,7 @@
     "query-string": "4.3.3",
     "replace": "0.3.0",
     "rimraf": "2.6.1",
-    "rollup": "0.55.0",
+    "rollup": "0.55.1",
     "rollup-plugin-inject": "2.0.0",
     "rollup-plugin-node-resolve": "2.1.1",
     "rollup-plugin-replace": "1.2.1",