build(deps): bump grpcio from 1.80.0 to 1.81.1 (#131)

Bumps [grpcio](https://github.com/grpc/grpc) from 1.80.0 to 1.81.1.
- [Release notes](https://github.com/grpc/grpc/releases)
- [Commits](grpc/grpc@v1.80.0...v1.81.1)

---
updated-dependencies:
- dependency-name: grpcio
  dependency-version: 1.81.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]