Set protobuf verion as ~=3.19.0

[whitphx]

📚 Context

Please describe the project or issue background here

• What kind of change does this PR introduce?

  • Bugfix
  • Feature
  • Refactoring
  • Other, please describe:

🧠 Description of Changes

The current version specification allows installing versions that have breaking-changes, e.g. major version-ups.

~= should be used rather than >=.

I also found that protobuf<=3.18.0 are also not working with the current codebase as it emits the error below during make mini-devel:

protoc \
                --proto_path=proto \
                --python_out=lib \
                --mypy_out=lib \
                proto/streamlit/proto/*.proto
Traceback (most recent call last):
  File "/path/to/workspace/streamlit/lib/.venv/bin/protoc-gen-mypy", line 5, in <module>
    from mypy_protobuf.main import main
  File "/path/to/workspace/streamlit/lib/.venv/lib/python3.10/site-packages/mypy_protobuf/main.py", line 26, in <module>
    from . import extensions_pb2
  File "/path/to/workspace/streamlit/lib/.venv/lib/python3.10/site-packages/mypy_protobuf/extensions_pb2.py", line 22, in <module>
    casttype = DESCRIPTOR.extensions_by_name['casttype']
AttributeError: 'NoneType' object has no attribute 'extensions_by_name'
--mypy_out: protoc-gen-mypy: Plugin failed with status code 1.
make: *** [protobuf] Error 1

I think other dependencies also should be specified in better way like ~= instead of >= or * though this PR does not include them as it's not urgent.

🧪 Testing Done

• Screenshots included
• Added/Updated unit tests
• Added/Updated e2e tests

🌐 References

https://discuss.streamlit.io/t/streamlit-run-with-protocbuf-error/25632

• Issue: Closes #XXXX

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[kmcgrady]

Thanks @whitphx for bringing this up to us! We found a solution and merged it in. This will be in the next version release! I will close this.

[whitphx]

@kmcgrady Thank you,
The problem itself has been solved with #4781 then in addtion the minimum version was also updated as 3.12 in #4783.
However at least in my environment protobuf<3.19 does not work with make mini-devel as described in this PR above, so I think it should be >=3.19.
What do you think?

[kmcgrady]

Hey @whitphx! I brought this up to the team and they mentioned it working on a lower version. I'll cc @LukasMasuch to follow up to be sure.

[LukasMasuch]

Hey @whitphx, It seems to be broken for development with protobuf<3.19. But streamlit (at runtime) is running fine with protobuf>=3.12. I think in this case we need to add protobuf = ">=3.19, <4" to our dev dependencies. I will add a PR for this 👍

[whitphx]

@LukasMasuch Hi, it makes sense. Thank you!