⬆️ Bump actions/upload-artifact from 3 to 4 #14

Job	Run time
build-on-linux (linux-kvm-debug)	53s
build-on-windows (windows-debug)	1m 1s
build-on-linux (linux-kvm-release)	50s
build-on-windows (windows-release)	38s
build-on-linux (linux-hyperv-debug)	57s
build-on-linux (linux-hyperv-release)	54s
fuzzing / fuzz	9m 51s
rust / build (windows-2022-debug)	14m 31s
rust / build (linux-kvm-debug)	9m 54s
rust / build (linux-hyperv-debug)	9m 59s
rust / build (windows-2022-release)	20m 0s
rust / build (linux-kvm-release)	13m 38s
rust / build (linux-hyperv-release)	13m 51s
	1h 36m 57s

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