Fix commit_status problem when testing (#29672) (#29675)

Backport #29672 by @charles7668

Close #29661

fix #29656

Co-authored-by: charles <30816317+charles7668@users.noreply.github.com>

services/pull/commit_status.go

@@ -58,7 +58,7 @@ func MergeRequiredContextsCommitStatus(commitStatuses []*git_model.CommitStatus,
 		}
 	}
 
-	if matchedCount == 0 {
+	if matchedCount == 0 && returnedStatus == structs.CommitStatusSuccess {
 		status := git_model.CalcCommitStatus(commitStatuses)
 		if status != nil {
 			return status.State