chore(deps): update sigstore/cosign-installer action to v3.8.1 #200

Job	Run time
Continuous Integration - Contrib - GoReleaser / check-goreleaser (linux, 386)	50s
Continuous Integration - Contrib - GoReleaser / check-goreleaser (linux, amd64)	1m 1s
Continuous Integration - Contrib - GoReleaser / check-goreleaser (linux, arm64)	1m 0s
Continuous Integration - Contrib - GoReleaser / check-goreleaser (linux, ppc64le)	49s
Continuous Integration - Contrib - GoReleaser / check-goreleaser (linux, arm)	51s
Continuous Integration - Contrib - GoReleaser / check-goreleaser (linux, s390x)	50s
Continuous Integration - Contrib - GoReleaser / check-goreleaser (windows, 386)	1m 3s
Continuous Integration - Contrib - GoReleaser / check-goreleaser (windows, amd64)	1m 2s
Continuous Integration - Contrib - GoReleaser / check-goreleaser (windows, ppc64le)	49s
Continuous Integration - Contrib - GoReleaser / check-goreleaser (darwin, amd64)	57s
Continuous Integration - Contrib - GoReleaser / check-goreleaser (darwin, arm64)	46s
Continuous Integration - Contrib - GoReleaser / check-goreleaser (darwin, ppc64le)	55s
	10m 53s

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