update vendors

Author: Kevin Wiesmueller

go.mod

@@ -7,6 +7,7 @@ require (
 	github.com/json-iterator/go v1.1.6
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.1 // indirect
+	github.com/stretchr/testify v1.3.0 // indirect
 )
 
 go 1.13

go.sum

@@ -17,5 +17,4 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.1 h1:mUhvW9EsL+naU5Q3cakzfE91YhliOondGd6ZrsDBHQE=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-sigs.k8s.io/structured-merge-diff v1.0.1 h1:LOs1LZWMsz1xs77Phr/pkB4LFaavH7IVq/3+WTN9XTA=
-sigs.k8s.io/structured-merge-diff v1.0.1/go.mod h1:IIgPezJWb76P0hotTxzDbWsMYB8APh18qZnxkomBpxA=
+sigs.k8s.io/structured-merge-diff v1.0.2 h1:WiMoyniAVAYm03w+ImfF9IE2G23GLR/SwDnQyaNZvPk=