feat: Add default 21 days on controlplane cert expiry#805
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Summary
Set default value of
certificatesExpiryDaysto21in the CAPI Helm chart.with this change, controlplane machine will be automatically rolled out
21days before kubeadm certificates expire.Relationships with other PRs
This change follows the instruction of:
Backwards compatibility
Existing azimuth clusters that explicitly configure
certificateExpiryDayswould not be affected.Users can override the default value through their helm values if a different rollout threshold is needed.