chore(package): update jest-fetch-mock to version 3.0.0

Author: greenkeeper[bot]

package.json

@@ -42,7 +42,7 @@
     "@types/jest": "^24.0.0",
     "chai": "^4.1.2",
     "jest": "^23.5.0",
-    "jest-fetch-mock": "^2.0.0",
+    "jest-fetch-mock": "^3.0.0",
     "mocha": "^6.0.0",
     "nock": "^11.3.5",
     "prettier": "^1.14.2",