Bump node-fetch from 2.6.0 to 2.6.1 in /site (#5377)

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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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

site/package-lock.json

@@ -2857,9 +2857,9 @@
       }
     },
     "node-fetch": {
-      "version": "2.6.0",
-      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.0.tgz",
-      "integrity": "sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA==",
+      "version": "2.6.1",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.1.tgz",
+      "integrity": "sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw==",
       "dev": true
     },
     "node-pg-migrate": {

site/package.json

@@ -48,7 +48,7 @@
     "esm": "^3.2.25",
     "jimp": "^0.8.0",
     "mocha": "^6.2.0",
-    "node-fetch": "^2.6.0",
+    "node-fetch": "^2.6.1",
     "node-pg-migrate": "^3.22.0",
     "npm-run-all": "^4.1.5",
     "rollup": "^2.26.10",