Bump node-fetch from 2.3.0 to 2.5.0

Bumps [node-fetch](https://github.com/bitinn/node-fetch) from 2.3.0 to 2.5.0.
- [Release notes](https://github.com/bitinn/node-fetch/releases)
- [Changelog](https://github.com/bitinn/node-fetch/blob/master/CHANGELOG.md)
- [Commits](node-fetch/node-fetch@v2.3.0...v2.5.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Author: dependabot-support

package-lock.json

@@ -101,7 +101,7 @@
     "mocha-junit-reporter": "1.22.0",
     "mocha-multi-reporters": "1.1.7",
     "mocha-stress": "1.0.0",
-    "node-fetch": "2.3.0",
+    "node-fetch": "2.5.0",
     "nyc": "14.0.0",
     "relay-compiler": "3.0.0",
     "semver": "6.0.0",