fix: upgrade jest from 25.1.0 to 25.2.0 (#3)

Snyk has created this PR to upgrade jest from 25.1.0 to 25.2.0.

See this package in NPM:
https://www.npmjs.com/package/jest

See this project in Snyk:
https://app.snyk.io/org/mkai/project/8ba06e00-d4d2-46b5-bfc8-d7f447984e56?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -47,7 +47,7 @@
     "eslint-plugin-node": "^11.0.0",
     "eslint-plugin-prettier": "^3.1.2",
     "eslint-plugin-promise": "^4.2.1",
-    "jest": "^25.1.0",
+    "jest": "^25.2.0",
     "prettier": "^1.19.1",
     "rimraf": "^3.0.2"
   }