K8SPXC-1784 set the certificate privateKey rotationPolicy to Never

[gkech]

Jira: https://perconadev.atlassian.net/browse/K8SPXC-1784

CHANGE DESCRIPTION

Problem:

Cert-manager version 1.18.0 introduced a change when rotating certificates. The default value of rotationPolicy was changed from 'Never' to 'Always'. With this PR we are hardcoding the rotationPolicy to 'Never' so that we keep the as it behaviour for newer cert manager versions. We may explore in the future the possibility of configuring that appropriately through exposing a cr option or something similar.

Cause:
Short explanation of the root cause of the issue if applicable.

Solution:
Short explanation of the solution we are providing with this PR.

CHECKLIST

Jira

• Is the Jira ticket created and referenced properly?
• Does the Jira ticket have the proper statuses for documentation (Needs Doc) and QA (Needs QA)?
• Does the Jira ticket link to the proper milestone (Fix Version field)?

Tests

• Is an E2E test/test case added for the new feature/change?
• Are unit tests added where appropriate?
• Are OpenShift compare files changed for E2E tests (compare/*-oc.yml)?

Config/Logging/Testability

• Are all needed new/changed options added to default YAML files?
• Are all needed new/changed options added to the Helm Chart?
• Did we add proper logging messages for operator actions?
• Did we ensure compatibility with the previous version or cluster upgrade process?
• Does the change support oldest and newest supported PXC version?
• Does the change support oldest and newest supported Kubernetes version?

[egegunes]

didn't we already do this? was it another operator?

[gkech]

didn't we already do this? was it another operator?

with the cert manager integration on pg operator, we also added this