Switch autobuild OS to ARM runner #830

Job	Run time
Build vars & Github release (if required)	4s
Build for Android .apk (artifact+codeQL)	30m 43s
Build for Linux .deb amd64 (artifacts+codeQL)	6m 59s
Build for Linux .deb armhf (artifacts)	3m 52s
Build for Linux .deb arm64 (artifacts)	3m 15s
Build for MacOS (artifacts)	6m 11s
Build for MacOS Legacy (artifacts+CodeQL)	19m 3s
Build for iOS (artifacts)	3m 42s
Build for Windows (artifact+codeQL)	21m 44s
Build for Windows JACK (artifact)	7m 21s
Create files for .deb repository (if requested)	0s
	1h 42m 54s

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