ci: streamline CI actions to prepare for merge queue introduction #2

Job	Run time
build-windows-pr (x86_64-pc-windows-msvc, dev)	14m 28s
build-macos (x86_64-apple-darwin, dev)	21m 6s
build-windows-pr (x86_64-pc-windows-msvc, release)	6m 26s
build-macos (x86_64-apple-darwin, release)	9m 47s
build-macos (aarch64-apple-darwin, dev)	6m 10s
build-macos (aarch64-apple-darwin, release)	7m 15s
build-windows-master	0s
build-linux-pr (dev, x86_64-unknown-linux-gnu)	10m 54s
build-linux-pr (dev, armv7-unknown-linux-gnueabihf)	3m 7s
build-linux-pr (dev, aarch64-linux-android)	2m 39s
build-windows-stable	0s
build-linux-pr (release, x86_64-unknown-linux-gnu)	5m 34s
build-linux-pr (release, armv7-unknown-linux-gnueabihf)	4m 15s
build-linux-pr (release, aarch64-linux-android)	2m 23s
build-linux-master	0s
build-linux-stable	0s
check	1m 18s
	1h 35m 22s

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