chore(package): update flow-bin to version 0.77.0

Author: greenkeeper[bot]

package.json

@@ -59,7 +59,7 @@
     "codacy-coverage": "^3.0.0",
     "eslint": "^5.0.1",
     "eslint-plugin-flowtype": "^2.49.3",
-    "flow-bin": "^0.75.0",
+    "flow-bin": "^0.77.0",
     "jest": "^23.2.0",
     "prettier": "^1.13.7",
     "regenerator-runtime": "^0.12.0",