container imagePullSecret

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Is your feature request related to a problem? Please describe the problem.

Please add support so that a image pull secret maybe used to allow credentials to be provided and used when connecting to secured/private container registry

### Describe the solution you'd like

```
**var _containerRegistrySecret = builder.AddContainerRegistrySecret(
registry: "",
namespace: "",
username: "",
password: "");**

var _container = builder.AddContainer(
name: "some-container",
image: "some-container/some-contait")
**.WithReference(
_containerRegistrySecret
);**

```

### Additional context

_No response_