chore(package): update babel-jest to version 23.0.1

Closes #37

Author: greenkeeper[bot]

package.json

@@ -81,7 +81,7 @@
     "babel-cli": "^6.26.0",
     "babel-core": "^6.26.0",
     "babel-eslint": "^8.0.1",
-    "babel-jest": "^22.0.0",
+    "babel-jest": "^23.0.1",
     "babel-plugin-add-module-exports": "^0.2.1",
     "babel-plugin-transform-runtime": "^6.23.0",
     "babel-preset-env": "^1.6.1",