Add `kube::Api::get_metadata_opt_with`

### Would you like to work on this feature?

no

### What problem are you trying to solve?

Where's `get_metadata_opt_with`?

### Describe the solution you'd like

`get_metadata_opt_with`

### Describe alternatives you've considered

`get_metadata_with_opt`

### Documentation, Adoption, Migration Strategy

_No response_

### Target crate for feature

_No response_