Bump grpc-stubs from 1.24.11 to 1.24.12 (#479)

Bumps [grpc-stubs](https://github.com/shabbyrobe/grpc-stubs) from 1.24.11 to 1.24.12.
- [Release notes](https://github.com/shabbyrobe/grpc-stubs/releases)
- [Commits](https://github.com/shabbyrobe/grpc-stubs/commits)

---
updated-dependencies:
- dependency-name: grpc-stubs
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

test_requirements.txt

@@ -2,6 +2,6 @@
 # generated code.
 protobuf==4.21.9
 pytest==7.2.1
-grpc-stubs==1.24.11
+grpc-stubs==1.24.12
 grpcio-tools==1.51.1
 types-protobuf==4.21.0.5