fix: rename module to github.com/zalando/postgres-operator/v2 (#3156)

* fix: rename module to github.com/zalando/postgres-operator/v2

Upgrade performed using https://github.com/icholy/gomajor

```
gomajor path -version v2
```

Signed-off-by: Benjamin Ritter <benjamin.ritter@x-cellent.com>

* fix: make fmt

Signed-off-by: Benjamin Ritter <benjamin.ritter@x-cellent.com>

* fix: adjust codegen module name

Signed-off-by: Benjamin Ritter <benjamin.ritter@x-cellent.com>

---------

Signed-off-by: Benjamin Ritter <benjamin.ritter@x-cellent.com>
Co-authored-by: Felix Kunde <felix-kunde@gmx.de>

pkg/util/volumes/ebs.go

@@ -10,8 +10,8 @@ import (
 	"github.com/aws/aws-sdk-go-v2/service/ec2/types"
 	v1 "k8s.io/api/core/v1"
 
-	"github.com/zalando/postgres-operator/pkg/util/constants"
-	"github.com/zalando/postgres-operator/pkg/util/retryutil"
+	"github.com/zalando/postgres-operator/v2/pkg/util/constants"
+	"github.com/zalando/postgres-operator/v2/pkg/util/retryutil"
 )
 
 // EBSVolumeResizer implements volume resizing interface for AWS EBS volumes.

pkg/util/volumes/ebs_test.go

@@ -2,9 +2,9 @@ package volumes
 
 import (
 	"fmt"
-	"testing"
 	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"testing"
 )
 
 func TestGetProviderVolumeID(t *testing.T) {
@@ -88,7 +88,7 @@ func TestVolumeBelongsToProvider(t *testing.T) {
 			name: "AWS EBS volume handle",
 			pv: &v1.PersistentVolume{
 				ObjectMeta: metav1.ObjectMeta{
-					Annotations: map[string]string {
+					Annotations: map[string]string{
 						"pv.kubernetes.io/provisioned-by": "kubernetes.io/aws-ebs",
 					},
 				},