Bump node-fetch and @reach/router

Bumps [node-fetch](https://github.com/node-fetch/node-fetch) and [@reach/router](https://github.com/reach/router). These dependencies needed to be updated together.

Removes `node-fetch`

Updates `@reach/router` from 1.2.1 to 1.3.4
- [Release notes](https://github.com/reach/router/releases)
- [Changelog](https://github.com/reach/router/blob/master/CHANGELOG.md)
- [Commits](https://github.com/reach/router/commits)

---
updated-dependencies:
- dependency-name: node-fetch
  dependency-type: indirect
- dependency-name: "@reach/router"
  dependency-type: direct:production
...

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

Author: dependabot[bot]

complete-intro-to-react-v5/adopt-me/package-lock.json

@@ -38,7 +38,7 @@
     "@emotion/babel-preset-css-prop": "^10.0.17",
     "@emotion/core": "^10.0.17",
     "@frontendmasters/pet": "^1.0.3",
-    "@reach/router": "^1.2.1",
+    "@reach/router": "^1.3.4",
     "react": "^16.9.0",
     "react-dom": "^16.9.0"
   },