chore(deps-dev): update grpcio-tools requirement in /sdk

Updates the requirements on [grpcio-tools](https://github.com/grpc/grpc) to permit the latest version.
- [Release notes](https://github.com/grpc/grpc/releases)
- [Commits](grpc/grpc@v1.80.0...v1.81.0)

---
updated-dependencies:
- dependency-name: grpcio-tools
  dependency-version: 1.81.0
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

sdk/pyproject.toml

@@ -42,7 +42,7 @@ dev = [
     "mypy>=2.1.0",
     "mypy-protobuf>=5.1.0",
     "ruff>=0.15.15",
-    "grpcio-tools>=1.80.0",
+    "grpcio-tools>=1.81.0",
     "pdoc>=16.0.0",
 ]