🐛 update RolloutStrategy embed struct

[haoqing0110]

Summary

When I have the below code, found the timeout field will not be created/patched, always empty value, update the embed struct can fix the issue.

			ginkgo.By("update cma to rolling update with timeout")
			cma, err = hubAddonClient.AddonV1alpha1().ClusterManagementAddOns().Get(context.Background(), cma.Name, metav1.GetOptions{})
			gomega.Expect(err).ToNot(gomega.HaveOccurred())
			cma.Spec.InstallStrategy.Placements[0].RolloutStrategy = clusterv1alpha1.RolloutStrategy{
				Type:        clusterv1alpha1.Progressive,
				Progressive: &clusterv1alpha1.RolloutProgressive{MaxConcurrency: intstr.FromString("50%"), Timeout: clusterv1alpha1.Timeout{Timeout: "2s"}},
			}
			patchClusterManagementAddOn(context.Background(), cma)

Related issue(s)

Fixes #

[haoqing0110]

/assign @qiujian16

[qiujian16]

/approve
/lgtm

[openshift-ci]

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