chore(deps): update actions/download-artifact action to v4 #544

Job	Run time
Generate a release name to use	6s
Test and Build (darwin, amd64)	26s
Test and Build (darwin, arm64)	30s
Test and Build (linux, amd64)	43s
Test and Build (linux, 386)	30s
Test and Build (linux, arm64)	40s
Test and Build (linux, arm)	37s
Test and Build (windows, amd64)	40s
Test and Build (windows, 386)	30s
Test and Build (windows, arm)	35s
Test and Build (netbsd, amd64)	30s
Test and Build (netbsd, 386)	44s
Test and Build (netbsd, arm64)	40s
Test and Build (netbsd, arm)	28s
Test and Build (freebsd, amd64)	27s
Test and Build (freebsd, 386)	41s
Test and Build (freebsd, arm)	1m 40s
Test and Build (openbsd, amd64)	3m 13s
Test and Build (openbsd, 386)	31s
Test and Build (openbsd, arm64)	38s
Test and Build (openbsd, arm)	2m 48s
Test and Build (plan9, amd64)	23s
Test and Build (plan9, 386)	27s
Test and Build (plan9, arm)	33s
Test and Build (solaris, amd64)	24s
Write krew manifest file	0s
	19m 24s

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