fix lint

store/types/store.go

@@ -270,7 +270,7 @@ type GKVStore[V any] interface {
 type GIterator[V any] interface {
 	// Domain returns the start (inclusive) and end (exclusive) limits of the iterator.
 	// CONTRACT: start, end readonly []byte
-	Domain() (start []byte, end []byte)
+	Domain() (start, end []byte)
 
 	// Valid returns whether the current iterator is valid. Once invalid, the Iterator remains
 	// invalid forever.