fix ci issue

Signed-off-by: Shawn Chen <chen8132@gmail.com>

vendor.conf

@@ -7,7 +7,7 @@ github.com/beorn7/perks 4c0e84591b9aa9e6dcfdf3e020114cd81f89d5f9
 github.com/bugsnag/bugsnag-go b1d153021fcd90ca3f080db36bec96dc690fb274
 github.com/bugsnag/osext 0dd3f918b21bec95ace9dc86c7e70266cfc5c702
 github.com/bugsnag/panicwrap e2c28503fcd0675329da73bf48b33404db873782
-github.com/denverdino/aliyungo 6df11717a253d9c7d4141f9af4deaa7c580cd531
+github.com/denverdino/aliyungo a747050bb1baf06cdd65de7cddc281a2b1c2fde5
 github.com/dgrijalva/jwt-go a601269ab70c205d26370c16f7c81e9017c14e04
 github.com/docker/go-metrics 399ea8c73916000c64c2c76e8da00ca82f8387ab
 github.com/docker/libtrust fa567046d9b14f6aa788882a950d69651d230b21