Bump mongodb from 4.17.2 to 6.12.0

Bumps [mongodb](https://github.com/mongodb/node-mongodb-native) from 4.17.2 to 6.12.0.
- [Release notes](https://github.com/mongodb/node-mongodb-native/releases)
- [Changelog](https://github.com/mongodb/node-mongodb-native/blob/main/HISTORY.md)
- [Commits](mongodb/node-mongodb-native@v4.17.2...v6.12.0)

---
updated-dependencies:
- dependency-name: mongodb
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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