Align CI and requires-python with Home Assistant (3.13, 3.14)

[mdz]

Summary

Aligns CI and requires-python with the versions Home Assistant uses, since this library is mainly used there.

Changes

• CI: Test on Python 3.13 and 3.14 only (matches HA's ALL_PYTHON_VERSIONS).
• pyproject.toml: requires-python = ">=3.13" (matches HA's >=3.13.2).
• Actions: checkout@v4, setup-python@v5.
• uv.lock: Regenerated for the new requires-python.

Why

• CI was failing: Python 3.9 is no longer available on GitHub Actions runners (only 3.10+ are listed).
• Focusing on 3.13 and 3.14 matches the only environment this library is tested in (Home Assistant).

Made with Cursor

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Note

Medium Risk
Drops support for Python 3.9–3.12 and changes the resolved dependency set via a regenerated lockfile, which may affect downstream users/environments even though runtime code is unchanged.

Overview
Updates the supported Python range to 3.13+ by bumping requires-python to >=3.13 and trimming CI to run only on Python 3.13 and 3.14.

Refreshes CI dependencies by upgrading actions/checkout to v4 and actions/setup-python to v5, and regenerates uv.lock for the new Python baseline (dropping older-version-only transitive deps/markers like tomli, typing-extensions, and async-timeout).

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