fix(deps): update sigs.k8s.io/controller-runtime/tools/setup-envtest digest to c8b4b9d - autoclosed #1341

Job	Run time
build-container (amd64, ubuntu-latest)	52s
build-console (amd64, ubuntu-latest)	2m 7s
build-console (arm64, ubuntu-24.04-arm)	2m 6s
build-container (arm64, ubuntu-24.04-arm)	28s
pre-push-check	0s
push-multiarch-manifest	0s
	5m 33s

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