build(deps-dev): bump node-fetch from 2.6.0 to 2.6.1

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](node-fetch/node-fetch@v2.6.0...v2.6.1)

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

package.json

@@ -72,7 +72,7 @@
     "linkinator": "^2.1.1",
     "lockfile-lint": "^4.3.7",
     "nock": "^13.0.4",
-    "node-fetch": "^2.6.0",
+    "node-fetch": "^2.6.1",
     "proxyquire": "^2.1.3",
     "remark-cli": "^8.0.1",
     "remark-frontmatter": "^2.0.0",