Remove asyncio from dependencies

[Dreamsorcerer]

asyncio is stdlib.

Having users install this old backport module will only result in things breaking for the user.

[greptile-apps]

Greptile Summary

Removes the asyncio==3.4.3 dependency from pyproject.toml. The asyncio module has been part of Python's standard library since Python 3.4, and this project requires Python >= 3.10 (as specified in requires-python). Having the backport package installed can cause import conflicts and break functionality, as it tries to override the stdlib module with an outdated version.

• The change correctly removes an unnecessary and problematic dependency
• The codebase extensively uses asyncio (found in 20+ files) but correctly imports from stdlib
• No code changes needed since all existing code already uses stdlib asyncio

Confidence Score: 5/5

• This PR is safe to merge with no risk
• The change removes an obsolete backport package that would conflict with Python 3.10+'s stdlib asyncio module. The project already requires Python >= 3.10, making this dependency not only unnecessary but actively harmful.
• No files require special attention

Important Files Changed

Filename	Overview
pyproject.toml	Removed obsolete asyncio==3.4.3 backport dependency that conflicts with Python 3.10+ stdlib

_{Last reviewed commit: ad8f4bd}

[greptile-apps]

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The base branch was changed.