Use system QScintilla and QuaZIP for Ubuntu native builds #289

Job	Run time
lint / build	1m 2s
build-ubuntu-release-tests / build	3m 40s
build-macos-release-tests / build	13m 1s
build-macos-debug-tests / build	21m 2s
build-ubuntu-debug-tests / build	18m 46s
build-altlinux-release-tests / build	7m 33s
build-rockylinux-distro-release-tests / build	43m 4s
build-rockylinux-installer-release-tests / build	25m 23s
build-macos-installer / build	13m 21s
build-rockylinux-installer / build	6m 47s
install-rockylinux-installer / job	15m 33s
install-altlinux-installer / job	9m 59s
install-archlinux-installer / job	9m 46s
install-astralinux18-installer / job	9m 37s
install-ubuntu-installer / job	9m 36s
install-macos-installer / job	7m 43s
	3h 35m 53s

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