torrra: äldre versioner att ladda ner

## What's Changed

- **Python 3.14 installs are now rejected.** `torrra` declares `Requires-Python: <3.14` because `libtorrent` still has no cp314 wheels. Previously, installing on Python 3.14 could silently resolve to an ancient `torrra` 0.1.2.
- If 3.14 is your default interpreter, use `uv tool install torrra --python 3.13` (or `pipx install --python 3.13 torrra`).
- Documented the Python requirements and the workaround in the installation guide.
- CI now actually tests Python 3.10–3.13 (the matrix previously always ran 3.13 because `.python-version` took precedence).

**Full Changelog**: https://github.com/stabldev/torrra/compare/v2.6.0...v2.6.1

What's Changed
- chore(deps): bump msgpack from 1.1.2 to 1.2.3 by @dependabot[bot] in #369
- [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #364
- feat: notify when a newer release is available by @stabldev in #371
- fix: persist torrent metadata so delete-with-data removes files by @stabldev in #372
Full Changelog: v2.5.1...v2.6.0

What's Changed
- [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #348
- feat: add PowerShell installer script and WinGet support by @stabldev in #315
- fix: destination error handling and metadata retrieval by @stabldev in #362
- fix: launch magnet URIs using platform scheme handler by @stabldev in #363
Full Changelog: v2.5.0...v2.5.1