chore(deps): bump node-fetch and next

Bumps [node-fetch](https://github.com/node-fetch/node-fetch) and [next](https://github.com/vercel/next.js). These dependencies needed to be updated together.

Updates `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)

Updates `next` from 11.1.3 to 11.1.4
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v11.1.3...v11.1.4)

---
updated-dependencies:
- dependency-name: node-fetch
  dependency-type: indirect
- dependency-name: next
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -74,7 +74,7 @@
         "lambda-tester": "^4.0.1",
         "loopback-datasource-juggler": "^4.26.0",
         "mocha": "6.1.4",
-        "next": "11.1.3",
+        "next": "11.1.4",
         "next-test-api-route-handler": "^3.1.8",
         "nock": "11.7.0",
         "prettier": "2.0.5",