update kube and vendor dependencies

With kubernetes 1.18 release of client-go, signatures on methods in
generated clientsets, dynamic, metadata, and scale clients have been
modified to accept context.Context as a first argument.
Signatures of Create, Update, and Patch methods have been updated
to accept CreateOptions, UpdateOptions and PatchOptions respectively.
Signatures of Delete and DeleteCollection methods now accept
DeleteOptions by value instead of by reference.
These changes are now accommodated with this PR and client-go
and dependencies are updated to v1.18.0

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>

vendor/k8s.io/client-go/tools/cache/listwatch.go

@@ -24,7 +24,6 @@ import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/watch"
 	restclient "k8s.io/client-go/rest"
-	"k8s.io/client-go/tools/pager"
 )
 
 // Lister is any object that knows how to perform an initial list.
@@ -85,7 +84,7 @@ func NewFilteredListWatchFromClient(c Getter, resource string, namespace string,
 			Namespace(namespace).
 			Resource(resource).
 			VersionedParams(&options, metav1.ParameterCodec).
-			Do().
+			Do(context.TODO()).
 			Get()
 	}
 	watchFunc := func(options metav1.ListOptions) (watch.Interface, error) {
@@ -95,16 +94,15 @@ func NewFilteredListWatchFromClient(c Getter, resource string, namespace string,
 			Namespace(namespace).
 			Resource(resource).
 			VersionedParams(&options, metav1.ParameterCodec).
-			Watch()
+			Watch(context.TODO())
 	}
 	return &ListWatch{ListFunc: listFunc, WatchFunc: watchFunc}
 }
 
 // List a set of apiserver resources
 func (lw *ListWatch) List(options metav1.ListOptions) (runtime.Object, error) {
-	if !lw.DisableChunking {
-		return pager.New(pager.SimplePageFunc(lw.ListFunc)).List(context.TODO(), options)
-	}
+	// ListWatch is used in Reflector, which already supports pagination.
+	// Don't paginate here to avoid duplication.
 	return lw.ListFunc(options)
 }