Bump node-fetch from 2.6.1 to 2.6.7

Bumps [node-fetch](https://github.com/node-fetch/node-fetch) from 2.6.1 to 2.6.7.
- [Release notes](https://github.com/node-fetch/node-fetch/releases)
- [Commits](node-fetch/node-fetch@v2.6.1...v2.6.7)

---
updated-dependencies:
- dependency-name: node-fetch
  dependency-type: direct:production
...

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

package.json

@@ -82,7 +82,7 @@
     "inversify": "^5.0.1",
     "md5": "^2.2.1",
     "morgan": "^1.9.1",
-    "node-fetch": "^2.6.1",
+    "node-fetch": "^2.6.7",
     "puzzle-warden": "^1.8.4",
     "reflect-metadata": "^0.1.12",
     "request": "^2.88.0",