e2e: use official CentOS container location

registry.centos.org is not officially maintained by the CentOS
infrastructure team. The container images on quay.io are the official
once and we should use those instead.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
(cherry picked from commit e0ac70f8fb)

e2e/utils.go

@@ -254,7 +254,7 @@ func validateNormalUserPVCAccess(pvcPath string, f *framework.Framework) error {
 			Containers: []v1.Container{
 				{
 					Name:    "write-pod",
-					Image:   "registry.centos.org/centos:latest",
+					Image:   "quay.io/centos/centos:latest",
 					Command: []string{"/bin/sleep", "999999"},
 					SecurityContext: &v1.SecurityContext{
 						RunAsUser: &user,

examples/rbd/block-pod-clone.yaml

@@ -6,7 +6,7 @@ metadata:
 spec:
   containers:
     - name: centos
-      image: registry.centos.org/centos:latest
+      image: quay.io/centos/centos:latest
       command: ["/bin/sleep", "infinity"]
       volumeDevices:
         - name: data

examples/rbd/raw-block-pod.yaml

@@ -6,7 +6,7 @@ metadata:
 spec:
   containers:
     - name: centos
-      image: registry.centos.org/centos:latest
+      image: quay.io/centos/centos:latest
       command: ["/bin/sleep", "infinity"]
       volumeDevices:
         - name: data