Changes by Kind

Bug or Regression

• Fix Cilium installation issues (caused by templating syntax errors) when certain non-default features (encryption, etc.) are enabled ([release-2.28] Fix indentation issue in Cilium values file and ensure booleans are lowercase #12283, @k8s-infra-cherrypick-robot)
• Fix cilium installation role to render cilium_config_extra_vars into helm values ([release-2.28] fix: set cilium extra configs defined in cilium_config_extra_vars group_vars #12338, @k8s-infra-cherrypick-robot)
• Fix the Cilium cluster, which is upgraded from 2.27 to 2.28 will break
  Fix helm release re-use message when installing repeatedly ([release-2.28] Fix: the cluster is upgraded from 2.27 to 2.28 cilium will break #12324, @k8s-infra-cherrypick-robot)
• Fix the issue of etcd node addition failure caused by incorrect ETCD_INITIAL_CLUSTER configuration. ([release-2.28] fix ETCD_INITIAL_CLUSTER config in etcd.env and etcd-events.env #12352, @k8s-infra-cherrypick-robot)
• Fix(kubeadm): Conditionally add --skip-phases flag for v1.32.0+ ([release-2.28] fix(kubeadm): Conditionally add --skip-phases flag for v1.32.0+ #12354, @k8s-infra-cherrypick-robot)
• Fix: When running ./manage-offline-container-images.sh register with using Podman, getting the image_id fails and the script is interrupted. ([release-2.28] fix: When running ./manage-offline-container-images.sh register using Podman, retrieving the image ID fails and the script stops. #12316, @k8s-infra-cherrypick-robot)