chore(deps): bump mongodb from 4.16.0 to 4.17.0 in /examples

Bumps [mongodb](https://github.com/mongodb/node-mongodb-native) from 4.16.0 to 4.17.0.
- [Release notes](https://github.com/mongodb/node-mongodb-native/releases)
- [Changelog](https://github.com/mongodb/node-mongodb-native/blob/v4.17.0/HISTORY.md)
- [Commits](mongodb/node-mongodb-native@v4.16.0...v4.17.0)

---
updated-dependencies:
- dependency-name: mongodb
  dependency-type: direct:production
...

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

Author: dependabot[bot]