Bump node-fetch from 2.6.0 to 2.6.1 (#104)

Bumps [node-fetch](https://github.com/bitinn/node-fetch) from 2.6.0 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/v2.6.0...v2.6.1)

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package.json

@@ -32,7 +32,7 @@
     "morgan": "~1.9.0",
     "multer": "^1.3.1",
     "nedb": "^1.8.0",
-    "node-fetch": "^2.3.0",
+    "node-fetch": "^2.6.1",
     "nodemon": "^1.18.3",
     "open-graph-scraper": "^4.5.0",
     "twig": "~1.12.0",