fix: cleanup role when the pod completes or fails

[shreddedbacon]

Checklist

• Affected Issues have been mentioned in the Closing issues section
• Documentation has been written/updated
• PR title is ready for changelog and subsystem label(s) applied

The active/standby task role that gets created to perform the actions wasn't always cleaned up at completion of the pod.

This fixes the issue by moving the role cleanup to the pod reconcile process to ensure the role is properly removed at completion of the task.

[rocketeerbkw]

Makes sense to me.