chore(package): update flow-bin to version 0.48.0

Author: greenkeeper[bot]

package.json

@@ -40,7 +40,7 @@
     "eslint-plugin-flowtype": "^2.34.0",
     "eslint-plugin-import": "^2.3.0",
     "eslint-plugin-prettier": "^2.1.1",
-    "flow-bin": "^0.47.0",
+    "flow-bin": "^0.48.0",
     "graphql": "^0.10.1",
     "graphql-compose": "^1.21.1",
     "jest": "^20.0.4",