Update dependency python to 3.15

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
python	uses-with	minor	3.14 → 3.15

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Release Notes

actions/python-versions (python)

v3.15.0: 3.15.0

Compare Source

Python 3.15.0

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[codecov]

Codecov Report

❌ Patch coverage is 97.18310% with 2 lines in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
utils/command_checks.py	80.00%	2 Missing ⚠️

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[renovate]

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[CarrotManMatt]

Confirmed tested (/ping command works).

[CarrotManMatt]

The docker build failure is due to missing base images: docker-library/python#1134 & astral-sh/uv#22459. Once these are available, the checks can be re-run and should pass.

[CarrotManMatt]

The package pyyaml also does not have wheels published that support Python 3.15 (yaml/pyyaml#951) so it is being temporarily built from source. Once those wheels are published, the configuration line in pyproject.toml to allow building pyyaml from source can be dropped.