chore(deps): bump grpcio in the production-dependencies group

Bumps the production-dependencies group with 1 update: [grpcio](https://github.com/grpc/grpc).


Updates `grpcio` from 1.68.1 to 1.69.0
- [Release notes](https://github.com/grpc/grpc/releases)
- [Changelog](https://github.com/grpc/grpc/blob/master/doc/grpc_release_schedule.md)
- [Commits](grpc/grpc@v1.68.1...v1.69.0)

---
updated-dependencies:
- dependency-name: grpcio
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: production-dependencies
...

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Author: dependabot[bot]