Show proper install path for Qt6 #91

Job	Run time
build (5.15.2, windows-msvc, windows-2022)	1m 13s
build (5.15.2, windows-mingw, windows-2022, win64_mingw81, win64_mingw, -DCMAKE_C_COMPILER:FILEPA...	38s
build (5.15.2, linux, ubuntu-22.04, -GNinja)	40s
build (5.15.2, android, ubuntu-22.04, android, -DCMAKE_SYSTEM_NAME:STRING=Android, -DCMAKE_SYSTEM...	43s
build (5.15.2, macos, macos-12)	40s
build (5.15.2, ios, macos-12, ios, -DCMAKE_FIND_ROOT_PATH:PATH=$Qt5_DIR$Qt6_DIR, -DCMAKE_PREFIX_P...	3m 8s
build (6.5.3, windows-msvc, windows-2022)	1m 43s
build (6.5.3, windows-mingw, windows-2022, win64_mingw81, win64_mingw, -DCMAKE_C_COMPILER:FILEPAT...	48s
build (6.5.3, linux, ubuntu-22.04, -GNinja)	47s
build (6.5.3, android, ubuntu-22.04, android, -DCMAKE_SYSTEM_NAME:STRING=Android, -DCMAKE_SYSTEM_...	50s
build (6.5.3, macos, macos-12)	57s
build (6.5.3, ios, macos-12, ios, -DCMAKE_FIND_ROOT_PATH:PATH=$Qt5_DIR$Qt6_DIR, -DCMAKE_PREFIX_PA...	3m 11s
	15m 18s

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