Bump cacheable-request and nodemon

Removes [cacheable-request](https://github.com/jaredwray/cacheable-request). It's no longer used after updating ancestor dependency [nodemon](https://github.com/remy/nodemon). These dependencies need to be updated together.


Removes `cacheable-request`

Updates `nodemon` from 2.0.15 to 2.0.20
- [Release notes](https://github.com/remy/nodemon/releases)
- [Commits](https://github.com/remy/nodemon/compare/v2.0.15...v2.0.20)

---
updated-dependencies:
- dependency-name: cacheable-request
  dependency-type: indirect
- dependency-name: nodemon
  dependency-type: direct:development
...

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

package.json

@@ -62,7 +62,7 @@
         "eslint-plugin-react": "^7.27.1",
         "jest": "^26.6.0",
         "mongodb-memory-server": "^6",
-        "nodemon": "^2.0.15",
+        "nodemon": "^2.0.20",
         "prettier-eslint": "^13.0.0",
         "supertest": "^6.1.6"
     },