The backoffLimit parameter support in SingletonTask and Task workload typle

[nonokangwei]

OAM Spec Info

in the OAM Rudr spec for SingletonTask and Task workload type, there has nowhere to specify the restart onfailure policy and backoff timer.

Is your feature request related to a problem? Please describe.
Cause Task and SingletonTask is mapping to K8S jobs, but for the detailed parameter in K8S jobs is not supported in OAM task components.

Describe the solution you'd like
can specify the restart poliy and backoff time parameter in components

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.