spin k8s scaffold: image pull secret support

[bacongobbler]

ImagePullSecrets is a list of references to secrets in the same namespace to use for pulling the image.

https://github.com/spinkube/spin-operator/blob/a401e4932595f7dd9d7980067f75bf075a4b0eec/config/crd/bases/core.spinoperator.dev_spinapps.yaml#L217C15-L233

[bacongobbler]

Marking as a nice-to-have. Users can take the output of spin k8s scaffold --from my-private-oci-registry.com/myapp:1.0.0 and add imagePullSecret metadata afterwards. A CLI option would make this a lot easier though!

[rajatjindal]

Hi @bacongobbler - if no one is working on this, I can pick this up. kindly let me know. thanks

[bacongobbler]

Go for it.

[rajatjindal]

fixed in #41