Migrate to networking.k8s.io (#265)

* Migrate to networking.k8s.io

Author: anandswaminathan

pkg/controller/flink/ingress.go

@@ -8,7 +8,7 @@ import (
 	"github.com/lyft/flinkk8soperator/pkg/controller/common"
 	"github.com/lyft/flinkk8soperator/pkg/controller/config"
 	"github.com/lyft/flinkk8soperator/pkg/controller/k8"
-	"k8s.io/api/extensions/v1beta1"
+	"k8s.io/api/networking/v1beta1"
 	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/intstr"
 )

pkg/controller/flink/job_manager_controller_test.go

@@ -20,7 +20,7 @@ import (
 	"github.com/stretchr/testify/assert"
 	v1 "k8s.io/api/apps/v1"
 	coreV1 "k8s.io/api/core/v1"
-	"k8s.io/api/extensions/v1beta1"
+	"k8s.io/api/networking/v1beta1"
 	k8sErrors "k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"