update dependencies to work with protobuf 5

[MohMaz]

Why are these changes needed?

Conflicting version with some other dependencies (e.g. chainlit for UI development).

• Tested on platform darwin, python 3.12.7-final-0 and aside from the tests, the distributed group chat sample works fine with the regenerated protos.
• Seems dotnet was using a different version, skipping that for this PR
• For UI development, devs should be able to install the repo as uv sync --extras dev and they will have chainlit installed as well

Related issue number

Closes #5074

Checks

• I've included any doc changes needed for https://microsoft.github.io/autogen/. See https://microsoft.github.io/autogen/docs/Contribute#documentation to build and test documentation locally.
• I've added tests (if relevant) corresponding to the changes introduced in this PR.
• I've made sure all auto checks have passed.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.90%. Comparing base (225eb9d) to head (d0ebd24).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5195      +/-   ##
==========================================
+ Coverage   70.45%   73.90%   +3.45%     
==========================================
  Files         179      116      -63     
  Lines       11588     7101    -4487     
==========================================
- Hits         8164     5248    -2916     
+ Misses       3424     1853    -1571     

Flag	Coverage Δ
unittests	73.90% <ø> (+3.45%)	⬆️

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[raimondasl]

Looks good to me.