Bump node-fetch from 2.6.1 to 2.6.7 (#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)
- [Changelog](https://github.com/node-fetch/node-fetch/blob/main/docs/CHANGELOG.md)
- [Commits](node-fetch/node-fetch@v2.6.1...v2.6.7)

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

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Author: dependabot[bot]

package-lock.json

@@ -16,7 +16,7 @@
   "dependencies": {
     "@octokit/rest": "^16.28.2",
     "chalk": "^2.4.2",
-    "node-fetch": "^2.6.1",
+    "node-fetch": "^2.6.7",
     "octokit-create-pull-request": "^1.2.0"
   }
 }