Release v0.6.0

End To End Tests: https://github.com/lxc/cluster-api-provider-incus/actions/runs/14983801240
Conformance Tests: https://github.com/lxc/cluster-api-provider-incus/actions/runs/14994805825

What's Changed

• Use Go 1.23.8 by @neoaggelos in #63
• upgrade golang.org/x/net v0.37.0 -> v0.39.0 by @neoaggelos in #62
• Inject install-kubeadm.sh script as an instance template file by @neoaggelos in #60
• Remove cloud provider node patch logic, remove BootstrapSucceeded condition from LXCMachine by @neoaggelos in #64
• Add LXCCluster and LXCMachine under 'cluster-api' category by @neoaggelos in #65
• Add image-builder utility by @neoaggelos in #66
• chore: code style updates for cmd/image-builder by @neoaggelos in #67
• Cleanup files when building instance images by @neoaggelos in #68
• upgrade kubeadm image components by @neoaggelos in #70
• upgrade cluster-api v1.9.6 -> v1.10.1 by @neoaggelos in #71
• Add cmd/exp/simplestreams utility by @neoaggelos in #69
• Build images with kube-flannel version v0.26.7 by @neoaggelos in #72
• update artifact name in build kubeadm images job by @neoaggelos in #73
• Only run QuickStart KVM e2e test on amd64 by @neoaggelos in #74
• bump github.com/lxc/incus/v6 client v6.8.0 -> v6.12.0 by @neoaggelos in #75
• Revert "Build images with kube-flannel version v0.26.7 (#72)" by @neoaggelos in #76
• Support skipping stages while building images by @neoaggelos in #77
• upgrade base images to containerd v2.1.0, runc v1.3.0 by @neoaggelos in #78
• remove unused LXCCluster.spec.skipCloudProviderNodePatch field by @neoaggelos in #79
• Address image builder issues in GitHub Actions by @neoaggelos in #80
• Use Kubernetes v1.33.0 for testing, test linux/arm64 in CI by @neoaggelos in #81
• Deploy kube-flannel as a ClusterResourceSet by @neoaggelos in #82
• Drop MDScale and MDRollout e2e tests by @neoaggelos in #83
• prepare for v0.6.0 release by @neoaggelos in #84
• Add LXCMachine.Spec.Config field by @neoaggelos in #85
• Update default simplestreams server information by @neoaggelos in #87
• Update quick start guide for Kubernetes v1.33.0 by @neoaggelos in #86

Full Changelog: v0.5.2...v0.6.0