vendor: update all dependencies to latest versions

vendor/github.com/aws/aws-sdk-go/awstesting/performance/init.go

@@ -9,7 +9,6 @@ import (
 	"runtime"
 
 	"github.com/gucumber/gucumber"
-	"github.com/stretchr/testify/assert"
 
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/aws/awserr"
@@ -32,8 +31,12 @@ func init() {
 	gucumber.Then(`^I should not have leaked any resources$`, func() {
 		runtime.GC()
 		err, ok := gucumber.World["error"].(awserr.Error)
-		assert.False(gucumber.T, ok, "error returned")
-		assert.NoError(gucumber.T, err)
+		if ok {
+			gucumber.T.Errorf("error returned")
+		}
+		if err != nil {
+			gucumber.T.Errorf("expect no error, got %v", err)
+		}
 	})
 
 	gucumber.And(`^I have a list of services$`, func() {