chore(package): update @types/jest to version 25.1.5

Closes #18

Author: greenkeeper[bot]

package.json

@@ -50,7 +50,7 @@
     }
   },
   "devDependencies": {
-    "@types/jest": "^24.0.15",
+    "@types/jest": "^25.1.5",
     "husky": "^3.0.1",
     "immutable": "^4.0.0-rc.12",
     "prettier": "^1.18.2",