Fix trace wrapper StartSpanFromContext (#8826)

Signed-off-by: Ndragondriver <jiquan.long@zilliz.com>

internal/util/trace/util.go

@@ -71,7 +71,7 @@ func initFromEnv(serviceName string) *config.Configuration {
 // StartSpanFromContext starts a opentracing span. The default operation name is
 // upper two call stacks of the function
 func StartSpanFromContext(ctx context.Context, opts ...opentracing.StartSpanOption) (opentracing.Span, context.Context) {
-	return StartSpanFromContextWithSkip(ctx, 2, opts...)
+	return StartSpanFromContextWithSkip(ctx, 3, opts...)
 }
 
 // StartSpanFromContextWithSkip starts a opentracing span with call skip. The operation