Removing all references of the PodSecurityPolicy for fluentd

[rnishtala-sumo]

Description

• The pdb api version has already been set to policy/v1 here
  https://github.com/SumoLogic/sumologic-kubernetes-collection/blob/main/deploy/helm/sumologic/templates/_api_versions_helpers.tpl#L10

• kube-prometheus-stack disables PodSecurityPolicies by default because they are deprecated in Kubernetes 1.21 and will be removed in Kubernetes 1.25, starting version 27.x. We're at 39.x

This PR removes the podSecurityPoliciy for fluend resources. Perhaps this isn't needed, wanted get some thoughts on this.

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Checklist

• Changelog updated

Testing performed

• Redeploy fluentd and fluentd-events pods
• Confirm events, logs, and metrics are coming in

[sumo-drosiek]

I would consider backward compatibility for k8s < 1.25

[swiatekm-sumo]

I would consider backward compatibility for k8s < 1.25

You mean like retaining the PodSecurityPolicies for k8s < 1.25? Does that actually serve any practical purpose?

I think we should just mark this as a breaking change and be done with it.

[rnishtala-sumo]

@sumo-drosiek @swiatekm-sumo have we decided that this will be a breaking change and can be removed, or do we need to think about backward compatibility?

[sumo-drosiek]

@sumo-drosiek @swiatekm-sumo have we decided that this will be a breaking change and can be removed, or do we need to think about backward compatibility?

Let's make it breaking change. We can always re-add it