chore(package): update @types/jest to version 25.2.2

Closes #62

Author: greenkeeper[bot]

package.json

@@ -41,7 +41,7 @@
     "@babel/preset-env": "^7.7.4",
     "@babel/preset-typescript": "^7.7.4",
     "@babel/runtime": "^7.7.4",
-    "@types/jest": "^24.0.6",
+    "@types/jest": "^25.2.2",
     "babel-eslint": "^10.0.1",
     "babel-jest": "^24.9.0",
     "babel-loader": "^8.0.5",