[all] Fix helm common labels

[rouke-broersma]

https://helm.sh/docs/chart_best_practices/labels/

Common labels are a bit inconsistent because I removed them from places where they were in the way (pod spec). We can probably re-add them everywhere and extend them with the other recommended labels, except in the pod spec. This probably would not trigger a pod rollout?

[rouke-broersma]

Also set minimum kube version in Chart.yaml. Example: kubeVersion: ">=1.21.0-0"