Merge pull request #1778 from atom/greenkeeper/node-fetch-2.2.1

Update node-fetch to the latest version 🚀

Author: smashwilson

package-lock.json

@@ -97,7 +97,7 @@
     "mocha-appveyor-reporter": "0.4.1",
     "mocha-multi-reporters": "^1.1.7",
     "mocha-stress": "1.0.0",
-    "node-fetch": "2.2.0",
+    "node-fetch": "2.2.1",
     "nyc": "13.0.0",
     "relay-compiler": "1.6.2",
     "semver": "5.6.0",