set QT_HOST_PATH to allow cross-compile

[petermbauer]

Specify library name and version: qt/6.x

I would like to add the cross-compilation ability. I could only test this on an Apple Silicon Mac for compiling to x86_64 so this may not work for other platforms.

Fixes #20257

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• I've read the contributing guidelines.
• I've used a recent Conan client version close to the currently deployed.
• I've tried at least one configuration locally with the conan-center hook activated.

[CLAassistant]

All committers have signed the CLA.

[github-actions]

🤖 Beep Boop! This pull request is making changes to 'recipes/qt//'.

👋 @ericLemanissier @jwillikers @MartinDelille you might be interested. 😉

[ghost]

I detected other pull requests that are modifying qt/6.x.x recipe:

• qt 6.5.3 #20186
• (#19767) qt: exclude examples from license pattern #19768
• qt/6.x.x: bump deps #19639
• qt: add QT_NO_DEBUG define in release build #19631
• qt/6.5.x: Only output a warning when using GCC 9 #19339
• Add QuickPrivate module #19082
• [qt/6.4.3] Add version #17951
• [qt/6.x.x] Fix conan toolchain #17925
• CMake Dependencies for Qt 6 Build #16485
• qt6: fixes for cross compiling #15678

This message is automatically generated by https://github.com/ericLemanissier/conan-center-conflicting-prs so don't hesitate to report issues/improvements there.

[conan-center-bot]

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