- Switch to Qt 6.8 for repo default, as 6.7 depends on an older
libwebp/tiff which is unavailable on newer installs
- Drop tools/mac-x86, as we no longer need to test against Qt 5
- Add flags to cross compile wheels on Mac and Linux
- Bump glibc target to 2_36, building on Debian Stable
- Increase mpv timeout on macOS to allow for initial gatekeeper checks
- Ship both arm64 and amd64 uv on Linux, with a bash stub to pick
the appropriate arch.