Include trampolines in sdist on Windows

[zanieb]

Naive fix for

         Compiling uv-trampoline-builder v0.0.1 (C:\Users\...\AppData\Local\uv\cache\sdists-v6\pypi\uv\0.5.2\9xswF03fJ5dr3vH_iowkm\src\crates\uv-trampoline-builder)
      error: couldn't read `crates\uv-trampoline-builder\src\../../uv-trampoline/trampolines/uv-trampoline-x86_64-gui.exe`: The system cannot find the path specified. (os error 3)
        --> crates\uv-trampoline-builder\src\lib.rs:21:5
         |
      21 |     include_bytes!("../../uv-trampoline/trampolines/uv-trampoline-x86_64-gui.exe");
         |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Closes: #9138.

[charliermarsh]

See: #9138

[dlech]

Success!

> pipx install ~\Downloads\uv-0.5.2.tar.gz
  installed package uv 0.5.2, installed using Python 3.13.0
  These apps are now globally available
    - uv.exe
    - uvx.exe
done! ✨ 🌟 ✨
> uv --version
uv 0.5.2

[charliermarsh]

Amazing, thanks @dlech.