Retry if a scheduled task failed

Please add a retry feature for failed scheduled tasks. This would be beneficial in several scenarios:

- Occasional failure of Acme certificates (urn:ietf:params:acme:error:rateLimited: Service busy; retry later.)

- Incomplete package updates by the SetupStore connector, often resolved by manual retry.

Ideally, the feature should allow setting a specific time range for retrying tasks and a maximum retry limit. This enhancement could reduce support tickets during service degradation.