Bump k8s.io/apimachinery from 0.18.8 to 0.19.1

Bumps [k8s.io/apimachinery](https://github.com/kubernetes/apimachinery) from 0.18.8 to 0.19.1.
- [Release notes](https://github.com/kubernetes/apimachinery/releases)
- [Commits](https://github.com/kubernetes/apimachinery/compare/v0.18.8...v0.19.1

)
Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -3,13 +3,12 @@ module github.com/weaveworks/kured
 go 1.13
 
 require (
-	github.com/googleapis/gnostic v0.2.0 // indirect
 	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/prometheus/client_golang v0.0.0-20181230203121-fb3d5cb2ad57
 	github.com/prometheus/common v0.0.0-20181218105931-67670fe90761
 	github.com/prometheus/procfs v0.0.0-20190102135031-14fa7590c24d // indirect
 	github.com/sirupsen/logrus v1.2.0
 	github.com/spf13/cobra v0.0.0-20181127133106-d2d81d9a96e2
-	k8s.io/apimachinery v0.18.8
+	k8s.io/apimachinery v0.19.1
 	k8s.io/client-go v0.18.8
 )

go.sum

@@ -569,6 +569,8 @@ k8s.io/apimachinery v0.18.8 h1:jimPrycCqgx2QPearX3to1JePz7wSbVLq+7PdBTTwQ0=
 k8s.io/apimachinery v0.18.8/go.mod h1:6sQd+iHEqmOtALqOFjSWp2KZ9F0wlU/nWm0ZgsYWMig=
 k8s.io/apimachinery v0.19.0 h1:gjKnAda/HZp5k4xQYjL0K/Yb66IvNqjthCb03QlKpaQ=
 k8s.io/apimachinery v0.19.0/go.mod h1:DnPGDnARWFvYa3pMHgSxtbZb7gpzzAZ1pTfaUNDVlmA=
+k8s.io/apimachinery v0.19.1 h1:cwsxZazM/LA9aUsBaL4bRS5ygoM6bYp8dFk22DSYQa4=
+k8s.io/apimachinery v0.19.1/go.mod h1:DnPGDnARWFvYa3pMHgSxtbZb7gpzzAZ1pTfaUNDVlmA=
 k8s.io/client-go v0.18.8 h1:SdbLpIxk5j5YbFr1b7fq8S7mDgDjYmUxSbszyoesoDM=
 k8s.io/client-go v0.18.8/go.mod h1:HqFqMllQ5NnQJNwjro9k5zMyfhZlOwpuTLVrxjkYSxU=
 k8s.io/client-go v1.5.1 h1:XaX/lo2/u3/pmFau8HN+sB5C/b4dc4Dmm2eXjBH4p1E=