L0 (Python) v0.21.1

What's Changed

• Update astral-sh/setup-uv action to v8 by @renovate[bot] in #16
• Update actions/checkout action to v7 by @renovate[bot] in #18
• Update astral-sh/setup-uv action to v8.2.0 by @renovate[bot] in #17

Full Changelog: 0.21.0...0.21.1