build(deps): bump grpcio-tools from 1.76.0 to 1.78.0 (#101)

Bumps [grpcio-tools](https://github.com/grpc/grpc) from 1.76.0 to 1.78.0.
- [Release notes](https://github.com/grpc/grpc/releases)
- [Commits](grpc/grpc@v1.76.0...v1.78.0)

---
updated-dependencies:
- dependency-name: grpcio-tools
  dependency-version: 1.78.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]