chore(package): update @types/jest to version 25.1.0

Closes #13

Author: greenkeeper[bot]

package.json

@@ -83,7 +83,7 @@
     "singleQuote": true
   },
   "devDependencies": {
-    "@types/jest": "^23.1.3",
+    "@types/jest": "^25.1.0",
     "@types/lodash.assign": "^4.2.3",
     "@types/lodash.omit": "^4.5.3",
     "@types/node": "^10.0.3",