Deprecate old-style clinvarSubmission

[holtgrewe]

Is your feature request related to a problem? Please describe.
Our models and msg modules support the clinvarSubmission way of submitting things. It is not apparent that this is marked as "old" by NCBI ClinVar.

Describe the solution you'd like
Mark them as deprecated in pydantic models.

Describe alternatives you've considered
N/A

Additional context

• The deprecation_message can be used on Pydantic fields: https://docs.pydantic.dev/latest/api/fields/#pydantic.fields.FieldInfo.from_annotated_attribute