docs: Add Turborepo 2.11 release post (#13652)
## Summary
- Add the Turborepo 2.11 release post.
- Highlight native Rust and Python support, package manager
improvements, and production pruning.
- Include release milestone artwork, the complete change list, and
contributor acknowledgments.
- Document `turbo run test` as a native Python task, following
[#13720](https://github.com/vercel/turborepo/pull/13720) (pytest task
discovery): root vs. member pytest ownership, the exact `uv run --frozen
...` command shapes in place of `uv tool run ...`, tool detection
sources, the `lint`/`check` fan-out, the `uv check` / `uv format`
fallbacks, and the feature list bumped to 44.
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Co-authored-by: vercel[bot] <35613825+vercel[bot]@users.noreply.github.com>
Co-authored-by: Cursor Agent <cursoragent@cursor.com>
