chore(package): update babel-jest to version 23.0.0-alpha.0

Closes #36

Author: greenkeeper[bot]

package.json

@@ -26,7 +26,7 @@
   "devDependencies": {
     "babel-core": "6.26.0",
     "babel-eslint": "7.2.3",
-    "babel-jest": "20.0.3",
+    "babel-jest": "23.0.0-alpha.0",
     "babel-preset-react-native": "2.1.0",
     "coveralls": "2.13.1",
     "eslint": "4.5.0",