chore(package): update @types/jest to version 25.2.3

Closes #16

Author: greenkeeper[bot]

package.json

@@ -61,7 +61,7 @@
     "singleQuote": true
   },
   "devDependencies": {
-    "@types/jest": "^24.0.19",
+    "@types/jest": "^25.2.3",
     "@types/node": "^12.11.1",
     "cross-env": "^6.0.3",
     "jest": "^24.9.0",