feat: DIA-1422: Add model_provider_connection to model version create

Author: hakan458

fern/openapi/resources/prompts.yaml

@@ -311,6 +311,10 @@ components:
         parent_model:
           title: Parent Model ID
           type: integer
+        model_provider_connection:
+          title: Model Provider Connection
+          type: integer
+
         prompt:
           title: Prompt
           type: string