Add AWS SageMaker operator to register a model's version

[vandonr-amz]

Add a SageMaker operator that allows registering a model version.

One would think that this takes a model and a version as input, but it's not quite as simple. Registering a model package is actually more like pushing a new version to prod.

I tried to make this as user-friendly as possible by expliciting the required parameters, and adding some of the most common ones, and the rest of the many possible parameters can be specified using kwargs.
The system test can be helpful in understanding what kind of inputs this expects.

Here is the official doc : https://docs.aws.amazon.com/sagemaker/latest/dg/model-registry-version.html
And here is some more context around model versions and package groups: https://docs.aws.amazon.com/sagemaker/latest/dg/model-registry.html

[eladkal]

LGTM left few questions / comments

[vandonr-amz]

hey @eladkal do you think there are more things to change on this PR ?
if not could you drop your change requested review ? 🙏

[eladkal]

I'll review this week