ci: Remove shiboken workarounds #1489

Job	Run time
build (ubuntu-latest, ci-dev-qt5, 5.15)	14m 24s
build (ubuntu-latest, ci-release-qt5, 5.15)	30s
build (ubuntu-latest, ci-qtwidgets-qt5, 5.15)	2m 25s
build (ubuntu-latest, ci-qtquick-qt5, 5.15)	2m 22s
build (ubuntu-latest, ci-dev-qt6, 6.3.*)	8m 41s
build (ubuntu-latest, ci-release-qt6, 6.3.*)	1m 44s
build (ubuntu-latest, ci-qtwidgets-qt6, 6.3.*)	2m 38s
build (ubuntu-latest, ci-qtquick-qt6, 6.3.*)	2m 43s
build (ubuntu-latest, ci-dev-static-qt6, 6.3.*)	8m 41s
build (windows-latest, ci-dev-qt5, 5.15)	21m 33s
build (windows-latest, ci-release-qt5, 5.15)	3m 52s
build (windows-latest, ci-qtwidgets-qt5, 5.15)	2m 27s
build (windows-latest, ci-qtquick-qt5, 5.15)	2m 48s
build (windows-latest, ci-dev-qt6, 6.3.*)	21m 21s
build (windows-latest, ci-release-qt6, 6.3.*)	4m 56s
build (windows-latest, ci-qtwidgets-qt6, 6.3.*)	3m 55s
build (windows-latest, ci-qtquick-qt6, 6.3.*)	4m 3s
build (windows-latest, ci-dev-static-qt6, 6.3.*)	19m 48s
build (macos-13, ci-dev-qt5, 5.15)	1m 24s
build (macos-13, ci-release-qt5, 5.15)	1s
build (macos-13, ci-qtwidgets-qt5, 5.15)	1s
build (macos-13, ci-qtquick-qt5, 5.15)	1s
build (macos-13, ci-dev-qt6, 6.3.*)	1m 9s
build (macos-13, ci-release-qt6, 6.3.*)	1s
build (macos-13, ci-qtwidgets-qt6, 6.3.*)	1s
build (macos-13, ci-qtquick-qt6, 6.3.*)	1s
build (macos-13, ci-dev-static-qt6, 6.3.*)	1s
build (ubuntu-latest, ci-python-qt6, 6.6.0, 0, llvm, shiboken6-generator==6.6.0 pyside6==6.6.0)	4m 12s
	2h 15m 43s

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