chore(package): update flow-bin to version 0.120.1

Closes #36

Author: greenkeeper[bot]

package.json

@@ -23,7 +23,7 @@
     "codecov": "^3.0.0",
     "eslint": "^4.3.0",
     "eslint-plugin-flowtype": "^2.34.0",
-    "flow-bin": "^0.75.0",
+    "flow-bin": "^0.120.1",
     "greenkeeper-lockfile": "1",
     "jest": "^22.0.0",
     "jest-cli": "^22.0.0",