fix(forms) Prevent schema field prompts from being required (#9831)

Author: chriscollins3456

metadata-ingestion/src/datahub/api/entities/forms/forms.py

@@ -174,6 +174,13 @@ def validate_prompts(self, emitter: DataHubGraph) -> List[FormPromptClass]:
                     raise Exception(
                         f"Prompt type is {prompt.type} but no structured properties exist. Unable to create form."
                     )
+                if (
+                    prompt.type == PromptType.FIELDS_STRUCTURED_PROPERTY.value
+                    and prompt.required
+                ):
+                    raise Exception(
+                        "Schema field prompts cannot be marked as required. Ensure these prompts are not required."
+                    )
 
                 prompts.append(
                     FormPromptClass(