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Prefect Version

2.x

Describe the current behavior

Today we can only create a new artifact through the python SDK but we would like to update an existing artifact mid flow run (because the run is very long).

Describe the proposed behavior

Make the rest API update option available in the SDK.
Maybe add a way to create a "special" artifact that keeps getting updated till the end of the flow run,

Example Use

No response

Additional context

No response