Merge pull request #14 from FinalDes/greenkeeper/@types/jest-22.0.0

Update @types/jest to the latest version 🚀

Author: FinalDes

package.json

@@ -22,7 +22,7 @@
     "@types/dotenv": "^4.0.0",
     "@types/graphql": "^0.11.7",
     "@types/helmet": "^0.0.37",
-    "@types/jest": "^21.1.8",
+    "@types/jest": "^22.0.0",
     "@types/supertest": "^2.0.2",
     "awesome-typescript-loader": "^3.4.1",
     "babel-minify-webpack-plugin": "^0.2.0",