ci: streamline CI actions to prepare for merge queue introduction #16

Job	Run time
build-linux-pr (dev, x86_64-unknown-linux-gnu)	3m 32s
build-windows-pr (x86_64-pc-windows-msvc, dev)	3m 19s
build-linux-pr (dev, armv7-unknown-linux-gnueabihf)	55s
build-windows-master	0s
build-windows-stable	0s
build-windows-pr (x86_64-pc-windows-msvc, release)	3m 25s
build-linux-pr (dev, aarch64-linux-android)	2m 16s
build-linux-pr (release, x86_64-unknown-linux-gnu)	3m 11s
build-linux-pr (release, armv7-unknown-linux-gnueabihf)	2m 8s
build-linux-pr (release, aarch64-linux-android)	2m 21s
build-macos (x86_64-apple-darwin, dev)	3m 32s
build-linux-master	0s
build-freebsd	3m 7s
build-macos (x86_64-apple-darwin, release)	3m 10s
build-macos (aarch64-apple-darwin, dev)	3m 28s
build-macos (aarch64-apple-darwin, release)	3m 30s
build-linux-stable	0s
check	34s
Documentation	3s
build-all-features (x86_64-unknown-linux-gnu)	3m 34s
conclusion	1s
	42m 6s

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