fix: update Head signature for syncer

sync/sync_head.go

@@ -15,7 +15,7 @@ import (
 // Known subjective head is considered network head if it is recent enough(now-timestamp<=blocktime)
 // Otherwise, head is requested from a trusted peer and
 // set as the new subjective head, assuming that trusted peer is always fully synced.
-func (s *Syncer[H]) Head(ctx context.Context) (H, error) {
+func (s *Syncer[H]) Head(ctx context.Context, _ ...header.Option) (H, error) {
 	sbjHead, err := s.subjectiveHead(ctx)
 	if err != nil {
 		return sbjHead, err