Custom labels and/or annotations are not applied to existing Pods and PVCs

Summary

When new custom labels and/or annotations are added to an existing SGCluster (via .spec.metadata.labels / .spec.metadata.annotations), they are propagated to the StatefulSet pod template but are not applied to the already existing Pods and PVCs. Existing resources only receive the new labels/annotations after they are recreated (e.g. a pod restart), instead of being patched in place during reconciliation.

Expected behavior

Adding new labels/annotations to an existing cluster should result in those labels/annotations being applied to the existing Pods and PVCs without requiring them to be recreated.

Steps to reproduce

1. Create an SGCluster and wait for its Pods and PVCs to be ready.
2. Add a new label and a new annotation to .spec.metadata.labels.clusterPods / .spec.metadata.annotations.clusterPods.
3. Observe that the existing Pods and PVCs do not get the newly added label/annotation.

Notes

• e2e coverage is added in the custom-labels and custom-annotations specs to assert that newly added labels/annotations reach the existing Pods and PVCs.