⬆ Bump the python-packages group across 1 directory with 3 updates

Bumps the python-packages group with 3 updates in the / directory: [grpcio-tools](https://github.com/grpc/grpc), [grpcio](https://github.com/grpc/grpc) and [pytest](https://github.com/pytest-dev/pytest).


Updates `grpcio-tools` from 1.80.0 to 1.81.0
- [Release notes](https://github.com/grpc/grpc/releases)
- [Commits](grpc/grpc@v1.80.0...v1.81.0)

Updates `grpcio` from 1.81.0 to 1.81.1
- [Release notes](https://github.com/grpc/grpc/releases)
- [Commits](grpc/grpc@v1.81.0...v1.81.1)

Updates `pytest` from 9.0.3 to 9.1.0
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@9.0.3...9.1.0)

---
updated-dependencies:
- dependency-name: grpcio-tools
  dependency-version: 1.81.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: python-packages
- dependency-name: grpcio
  dependency-version: 1.81.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: python-packages
- dependency-name: pytest
  dependency-version: 9.1.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: python-packages
...

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Author: dependabot[bot]