v0.4.0

What's Changed

• fix: Fix typo in VirtinkCluster.Spec.ControlPlaneServiceType by @carezkh in #13
• test: Add controller tests by @scuzhanglei in #12
• test: Add E2E tests by @scuzhanglei in #14
• test: Ensure cert-manager is ready in E2E by @scuzhanglei in #16
• docs: Update README.md for clusterctl v1.2.1 by @fengye87 in #17
• docs: Add external cluster usage details by @carezkh in #15
• feat: Support Nodes with persistent rootfs and IP by @scuzhanglei in #18
• feat: Import k8S images from tar file by @scuzhanglei in #19
• fix: Import Kubernetes images from new dir by @scuzhanglei in #20
• feat: Update metadata for v0.4.0 by @scuzhanglei in #21

Full Changelog: v0.3.0...v0.4.0