Build CI on ubuntu 20 for Linux #4298

Job	Run time
Build vars & Github release (if required)	13s
Build for Android .apk (artifact+codeQL)	19m 55s
Build for Linux .deb amd64 (artifacts+codeQL)	7m 41s
Build for Linux .deb armhf (artifacts)	3m 41s
Build for Linux .deb arm64 (artifacts)	3m 32s
Build for MacOS (artifacts)	16m 19s
Build for MacOS Legacy (artifacts+CodeQL)	19m 56s
Build for iOS (artifacts)	6m 2s
Build for Windows (artifact+codeQL)	22m 22s
Build for Windows JACK (artifact)	10m 0s
Create files for .deb repository (if requested)	0s
	1h 49m 41s

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