Bump semver, mongodb and nodemon in /react-express-mongodb/backend

Bumps [semver](https://github.com/npm/node-semver) to 7.8.4 and updates ancestor dependencies [semver](https://github.com/npm/node-semver), [mongodb](https://github.com/mongodb/node-mongodb-native) and [nodemon](https://github.com/remy/nodemon). These dependencies need to be updated together.


Updates `semver` from 6.3.0 to 7.8.4
- [Release notes](https://github.com/npm/node-semver/releases)
- [Changelog](https://github.com/npm/node-semver/blob/main/CHANGELOG.md)
- [Commits](https://github.com/npm/node-semver/compare/v6.3.0...v7.8.4)

Updates `mongodb` from 3.6.5 to 3.7.4
- [Release notes](https://github.com/mongodb/node-mongodb-native/releases)
- [Changelog](https://github.com/mongodb/node-mongodb-native/blob/main/HISTORY.md)
- [Commits](https://github.com/mongodb/node-mongodb-native/compare/v3.6.5...v3.7.4)

Updates `nodemon` from 2.0.3 to 3.1.14
- [Release notes](https://github.com/remy/nodemon/releases)
- [Commits](https://github.com/remy/nodemon/compare/v2.0.3...v3.1.14)

---
updated-dependencies:
- dependency-name: semver
  dependency-version: 7.8.4
  dependency-type: indirect
- dependency-name: mongodb
  dependency-version: 3.7.4
  dependency-type: direct:production
- dependency-name: nodemon
  dependency-version: 3.1.14
  dependency-type: direct:development
...

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

react-express-mongodb/backend/package.json

@@ -18,13 +18,13 @@
     "cors": "^2.8.4",
     "express": "^4.17.1",
     "lodash": "^4.17.13",
-    "mongodb": "^3.0.7",
+    "mongodb": "^3.7.4",
     "mongoose": "^6.0.9",
     "simple-node-logger": "^18.12.23",
     "validator": "^13.7.0"
   },
   "devDependencies": {
-    "nodemon": "^2.0.3",
+    "nodemon": "^3.1.14",
     "prettier": "^2.0.5"
   }
 }