Adding gRPC stubs

[PawelPlesniak]

Description

Helps with issue DUNE-DAQ/drunc#848

TLDR - while the message schema themselves had stubs, the gRPC service objects themselves did not. This PR allows for the stub files to also be generated.

Type of change

• Documentation (non-breaking change that adds or improves the documentation)
• New feature (non-breaking change which adds functionality)
• Optimization (non-breaking, back-end change that speeds up the code)
• Bug fix (non-breaking change which fixes an issue)
• Breaking change (whatever its nature)

Key checklist

• All tests pass (eg. python -m pytest)
• Pre-commit hooks run successfully (eg. pre-commit run --all-files)

Further checks

• Code is commented, particularly in hard-to-understand areas
• Tests added or an issue has been opened to tackle that in the future.
  (Indicate issue here: # (issue))

[PawelPlesniak]

MSQT and drunc integration tests passed on np04-srv-028 using NFD_DEV_260729_A9.

[emmuhamm]

LGTM 👍

To summarise, the main change in this PR is the line compiled_extensions = ["_pb2.py", "_pb2.pyi", "_pb2_grpc.py", "_pb2_grpc.pyi"] in the generate_protos.py, and any relevant changes in generate_protos.

The other changes in the .py files looks like formatting, and the stuffs in the pyproject.toml also is mostly formatting and updating. Stuff in src/druncschema is also the generated files, so I didn't take a look at them.

Feel free to merge whenever :D