qt: Add UIC test

[DoomHammer]

Summary

Changes to recipe: qt/6.x.x

Motivation

UIC seems broken on Linux. It cannot find ICU so even though ICU is installed by Conan. These tests should catch this.

Details

Ideally, a fix for Linux should also come in here, but for now I have no idea how to handle it.

---

• Read the contributing guidelines
• Checked that this PR is not a duplicate: list of PRs by recipe
• Tested locally with at least one configuration using a recent version of Conan

[DoomHammer]

FYI: @uilianries @franramirez688

[DoomHammer]

Oh, the test code comes from Qt examples

[conan-center-bot]

Conan v1 pipeline ✔️

All green in build 3 (c60552c3f3c6058366703c71a222a2dea59381a8):

• qt/6.6.3:
  All packages built successfully! (All logs)

• qt/6.7.1:
  All packages built successfully! (All logs)

• qt/6.5.3:
  All packages built successfully! (All logs)

---

Conan v2 pipeline ✔️

Note: Conan v2 builds are now mandatory. Please read our discussion about it.

All green in build 3 (c60552c3f3c6058366703c71a222a2dea59381a8):

• qt/6.7.1:
  All packages built successfully! (All logs)

• qt/6.6.3:
  All packages built successfully! (All logs)

• qt/6.5.3:
  All packages built successfully! (All logs)

[github-actions]

Hooks produced the following warnings for commit c60552c

qt/6.6.3@#6f08ea8350b7eb31e7e21a41f635f023

post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library '.\plugins\tls\qschannelbackend.dll' links to system library 'ncrypt' but it is not in cpp_info.system_libs.
post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library '.\plugins\tls\qschannelbackendd.dll' links to system library 'ncrypt' but it is not in cpp_info.system_libs.

qt/6.7.1@#db5f6c5471a4ae37f039f536f9f10de4

post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library '.\plugins\tls\qschannelbackendd.dll' links to system library 'ncrypt' but it is not in cpp_info.system_libs.
post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library '.\plugins\tls\qschannelbackend.dll' links to system library 'ncrypt' but it is not in cpp_info.system_libs.

qt/6.5.3@#8e4cdbb0b734374b4b305054e0d92b88

post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './plugins/platforms/libqcocoa.dylib' links to system library 'ColorSync' but it is not in cpp_info.frameworks.
post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './plugins/platforms/libqcocoa_debug.dylib' links to system library 'ColorSync' but it is not in cpp_info.frameworks.

[DoomHammer]

Now this is weird. It was supposed to fail on Linux... :/

[DoomHammer]

OK, it seems shared ICU was the problem here. Still, this PR might be useful maybe?