calico, cilium, occm: remove pre_upgrade and post_upgrade hooks

He have "helm.sh/hook": pre-install,pre-upgrade,post-install,post-upgrade for

• calico
• cilium
• occm to be able to install them first, before prometheus-operator and its webhooks.

We should remove pre-upgrade,post-upgrade to not trigger restarts of these components on helm upgrade.

This restart is not reported in helm diff nor kubectl diff.