Update flow-bin to the latest version 🚀 (#76)

## The devDependency [flow-bin](https://github.com/flowtype/flow-bin) was updated from `0.95.1` to `0.96.0`.
This version is **not covered** by your **current version range**.

If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.

---

[Find out more about this release](https://github.com/flowtype/flow-bin).

<details>
  <summary>FAQ and help</summary>

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Your [Greenkeeper](https://greenkeeper.io) bot 🌴

Author: greenkeeper[bot]

package.json

@@ -32,7 +32,7 @@
     "@babel/preset-react": "^7.0.0",
     "eslint": "^5.15.3",
     "eslint-config-callstack-io": "^1.1.1",
-    "flow-bin": "^0.95.1",
+    "flow-bin": "^0.96.0",
     "jest": "^24.0.0",
     "react": "^16.7.0",
     "react-test-renderer": "^16.7.0"

yarn.lock

@@ -2108,10 +2108,10 @@ flatted@^2.0.0:
   resolved "https://registry.yarnpkg.com/flatted/-/flatted-2.0.0.tgz#55122b6536ea496b4b44893ee2608141d10d9916"
   integrity sha512-R+H8IZclI8AAkSBRQJLVOsxwAoHd6WC40b4QTNWIjzAa6BXOBfQcM587MXDTVPeYaopFNWHUFLx7eNmHDSxMWg==
 
-flow-bin@^0.95.1:
-  version "0.95.1"
-  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.95.1.tgz#633113831ccff4b7ee70a2730f63fc43b69ba85f"
-  integrity sha512-06IOC/pqPMNRYtC6AMZEWYR9Fi6UdBC7gImGinPuNUpPZFnP5E9/0cBCl3DWrH4zz/gSM2HdDilU7vPGpYIr2w==
+flow-bin@^0.96.0:
+  version "0.96.0"
+  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.96.0.tgz#3b0379d97304dc1879ae6db627cd2d6819998661"
+  integrity sha512-OSxERs0EdhVxEVCst/HmlT/RcnXsQQIRqcfK9J9wC8/93JQj+xQz4RtlsmYe1PSRYaozuDLyPS5pIA81Zwzaww==
 
 for-in@^1.0.2:
   version "1.0.2"