zalando / postgres-operator / 35710827207

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Retry moveMasterPodsOffNode on failure instead of aborting (#3179)

attemptToMoveMasterPodsOffNode's transient errors (e.g. no synced
standby available yet) were treated as terminal, so the retry loop
gave up after a single ~4-5s attempt instead of retrying over
master_pod_move_timeout. This left masters stuck on draining nodes
indefinitely once a PodDisruptionBudget started rejecting evictions.

Log the failure and return (false, nil) so the retry loop keeps
polling every minute until the timeout expires.

Fixes #3176

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