fix: Data was not allowed in an interface

Co-authored-by: rvcas <x@rvcas.dev>

crates/aiken-project/src/blueprint/schema.rs

@@ -296,6 +296,17 @@ impl Annotated<Schema> {
                 description,
                 annotated: data,
             }),
+
+            Annotated {
+                title: Some(title),
+                description,
+                annotated: Schema::Data(None),
+            } if title == "Data" => Ok(Annotated {
+                title: Some(title),
+                description,
+                annotated: Data::AnyOf(vec![]),
+            }),
+
             _ => Err(Error::new(ErrorContext::ExpectedData, type_info)),
         }
     }