fix: Missing a feature flat cfg (#1563)

backend/src/procedure/mod.rs

@@ -128,6 +128,7 @@ impl std::fmt::Display for PackageProcedure {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
             PackageProcedure::Docker(_) => write!(f, "Docker")?,
+            #[cfg(feature = "js_engine")]
             PackageProcedure::Script(_) => write!(f, "JS")?,
         }
         Ok(())