Use docker images for CI/CD (fedora & opensuse) #198

Job	Run time
Code Linting / Format / Lint	6s
macOS / Build (debug, homebrew (qt5), macos-12)	1m 51s
Windows / Build (x64, release, Qt 5.15.2, windows-2019)	3m 33s
macOS / Build (debug, homebrew (qt6), macos-12)	2m 43s
Windows / Build (x86, release, Qt 5.15.2, windows-2019)	2m 48s
macOS / dmg (release, Qt 5.15.2, macos-11)	4m 15s
Windows / Build (x64, release, Qt 6.4.3, windows-2019)	4m 12s
macOS / dmg (release, Qt 6.5.2, macos-11)	7m 35s
Linux / AppImage (release, Qt 5.15.2, ubuntu:20.04)	2m 42s
Linux / AppImage (release, Qt 6.4.3, ubuntu:20.04)	3m 54s
Linux / deb (release, Qt 5, ubuntu-20_04)	1m 31s
Linux / deb (release, Qt 6, ubuntu-22_04)	2m 18s
Linux / deb (release, Qt 6, ubuntu-23_10)	2m 21s
Linux / rpm (release, Qt 6, fedora)	2m 9s
Linux / snap	4m 47s
Linux / rpm (release, Qt 6, opensuse)	2m 42s
Windows / Unified x64-x86 Installer	4m 48s
	54m 15s

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