bump python sdk version

[eckfel]

No description provided.

[greptile-apps]

Greptile Summary

This PR bumps the Python SDK package version.

• Updates pyproject.toml from 1.1.0 to 1.2.0.
• Leaves the package metadata as the release workflow’s version source.

Confidence Score: 5/5

This looks safe to merge.

• No blocking issues found in the changed code.

Important Files Changed

Filename	Overview
pyproject.toml	Bumps the package metadata version from 1.1.0 to 1.2.0.

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