build: [Security] Bump node-fetch from 2.3.0 to 2.6.1

Bumps [node-fetch](https://github.com/bitinn/node-fetch) from 2.3.0 to 2.6.1. **This update includes a security fix.**
- [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@v2.3.0...v2.6.1)

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

Author: dependabot-preview[bot]

npm-shrinkwrap.json

@@ -4349,8 +4349,8 @@ node-fetch-npm@^2.0.2:
     safe-buffer "^5.1.1"
 
 node-fetch@^2.3.0:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.3.0.tgz#1a1d940bbfb916a1d3e0219f037e89e71f8c5fa5"
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.1.tgz#045bd323631f76ed2e2b55573394416b639a0052"
 
 node-gyp@^3.8.0:
   version "3.8.0"