Run the integration tests on all platforms #70

Job	Run time
build (stable, ubuntu-latest, libei,wayland,xdo,x11rb)	5m 11s
build (stable, ubuntu-latest, default)	3m 48s
build (stable, ubuntu-latest, libei)	4m 57s
build (stable, ubuntu-latest, wayland)	4m 8s
build (stable, ubuntu-latest, xdo)	3m 55s
build (stable, ubuntu-latest, x11rb)	3m 38s
build (stable, windows-latest, default)	3m 5s
build (stable, macos-latest, default)	2m 0s
build (nightly, ubuntu-latest, libei,wayland,xdo,x11rb)	4m 54s
build (nightly, ubuntu-latest, default)	3m 31s
build (nightly, ubuntu-latest, libei)	3m 55s
build (nightly, ubuntu-latest, wayland)	3m 34s
build (nightly, ubuntu-latest, xdo)	3m 54s
build (nightly, ubuntu-latest, x11rb)	4m 1s
build (nightly, windows-latest, default)	4m 0s
build (nightly, macos-latest, default)	2m 33s
build (1.80.0, ubuntu-latest, libei,wayland,xdo,x11rb)	5m 22s
build (1.80.0, ubuntu-latest, default)	3m 23s
build (1.80.0, ubuntu-latest, libei)	4m 46s
build (1.80.0, ubuntu-latest, wayland)	3m 49s
build (1.80.0, ubuntu-latest, xdo)	3m 16s
build (1.80.0, ubuntu-latest, x11rb)	3m 50s
build (1.80.0, windows-latest, default)	3m 58s
build (1.80.0, macos-latest, default)	2m 4s
	1h 31m 32s

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