Bump node-fetch from 2.3.0 to 2.6.1 (#334)

Bumps [node-fetch](https://github.com/bitinn/node-fetch) from 2.3.0 to 2.6.1.
- [Release notes](https://github.com/bitinn/node-fetch/releases)
- [Changelog](https://github.com/node-fetch/node-fetch/blob/master/docs/CHANGELOG.md)
- [Commits](https://github.com/bitinn/node-fetch/compare/v2.3.0...v2.6.1)

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package.json

@@ -107,7 +107,7 @@
         "husky": "^2.3.0",
         "i18next-scanner": "^2.9.1",
         "merge-stream": "^2.0.0",
-        "node-fetch": "^2.3.0",
+        "node-fetch": "^2.6.1",
         "npmfiles": "^0.1.1",
         "prettier": "^1.17.1",
         "pretty-quick": "^1.10.0"