v0.6.0-RC1

Bump google.golang.org/grpc from 1.66.2 to 1.67.0 (#685)

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.66.2 to 1.67.0.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](https://github.com/grpc/grpc-go/compare/v1.66.2...v1.67.0)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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