e2e: set imageRepository to ""

The image repository has been changed to registry.k8s.io by commit 8c1e614

However, with registry.k8s.io, the control plane vm cannot be booted to Ready state due to error below
```
    ubuntu@disk-offering-gzojvb-control-plane-gwbnt:~$ tail -f /var/log/cloud-init-output.log
    [2023-05-08 11:09:23] [preflight] You can also perform this action in beforehand using 'kubeadm config images pull'
    [2023-05-08 11:09:28] error execution phase preflight: [preflight] Some fatal errors occurred:
    [2023-05-08 11:09:28]   [ERROR ImagePull]: failed to pull image registry.k8s.io/coredns:v1.8.4: output: time="2023-05-08T11:09:28Z" level=fatal msg="pulling image: rpc error: code = NotFound desc = failed to pull and unpack image \"registry.k8s.io/coredns:v1.8.4\": failed to resolve reference \"registry.k8s.io/coredns:v1.8.4\": registry.k8s.io/coredns:v1.8.4: not found"
    [2023-05-08 11:09:28] , error: exit status 1
```

this is same as kubernetes/kubeadm#2761
The new registry should be supported in k8s 1.25+. However, we still use 1.22/1.23/1.24 templates, so we need to use k8s.gcr.io

setting the image respository to "" so that capi/kubeadm will determine the default repository by kubernetes version.

Author: weizhouapache

test/e2e/data/infrastructure-cloudstack/v1beta1/bases/cluster-with-kcp.yaml

@@ -43,7 +43,7 @@ spec:
         kubeletExtraArgs:
           provider-id: cloudstack:///'{{ ds.meta_data.instance_id }}'
     clusterConfiguration:
-      imageRepository: registry.k8s.io
+      imageRepository: ""
     joinConfiguration:
       nodeRegistration:
         name: '{{ local_hostname }}'

test/e2e/data/infrastructure-cloudstack/v1beta1/cluster-template-custom-disk-offering/cluster-with-custom-disk-offering.yaml

@@ -10,7 +10,7 @@ spec:
         kubeletExtraArgs:
           provider-id: cloudstack:///'{{ ds.meta_data.instance_id }}'
     clusterConfiguration:
-      imageRepository: registry.k8s.io
+      imageRepository: ""
     joinConfiguration:
       nodeRegistration:
         name: '{{ local_hostname }}'

test/e2e/data/infrastructure-cloudstack/v1beta1/cluster-template-disk-offering/cluster-with-disk-offering.yaml

@@ -10,7 +10,7 @@ spec:
         kubeletExtraArgs:
           provider-id: cloudstack:///'{{ ds.meta_data.instance_id }}'
     clusterConfiguration:
-      imageRepository: registry.k8s.io
+      imageRepository: ""
     joinConfiguration:
       nodeRegistration:
         name: '{{ local_hostname }}'

test/e2e/data/infrastructure-cloudstack/v1beta1/cluster-template-shared-network-kubevip/cluster-with-shared-network-and-kubevip.yaml

@@ -43,7 +43,7 @@ spec:
         kubeletExtraArgs:
           provider-id: cloudstack:///'{{ ds.meta_data.instance_id }}'
     clusterConfiguration:
-      imageRepository: registry.k8s.io
+      imageRepository: ""
     joinConfiguration:
       nodeRegistration:
         name: '{{ local_hostname }}'

test/e2e/data/infrastructure-cloudstack/v1beta2/bases/cluster-with-kcp.yaml

@@ -48,7 +48,7 @@ spec:
         kubeletExtraArgs:
           provider-id: "cloudstack:///'{{ ds.meta_data.instance_id }}'"
     clusterConfiguration:
-      imageRepository: registry.k8s.io
+      imageRepository: ""
     joinConfiguration:
       nodeRegistration:
         name: '{{ local_hostname }}'

test/e2e/data/infrastructure-cloudstack/v1beta2/cluster-template-custom-disk-offering/cluster-with-custom-disk-offering.yaml

@@ -10,7 +10,7 @@ spec:
         kubeletExtraArgs:
           provider-id: "cloudstack:///'{{ ds.meta_data.instance_id }}'"
     clusterConfiguration:
-      imageRepository: registry.k8s.io
+      imageRepository: ""
     joinConfiguration:
       nodeRegistration:
         name: '{{ local_hostname }}'

test/e2e/data/infrastructure-cloudstack/v1beta2/cluster-template-disk-offering/cluster-with-disk-offering.yaml

@@ -10,7 +10,7 @@ spec:
         kubeletExtraArgs:
           provider-id: "cloudstack:///'{{ ds.meta_data.instance_id }}'"
     clusterConfiguration:
-      imageRepository: registry.k8s.io
+      imageRepository: ""
     joinConfiguration:
       nodeRegistration:
         name: '{{ local_hostname }}'

test/e2e/data/infrastructure-cloudstack/v1beta2/cluster-template-kubernetes-version-upgrade-after/upgrade-cp.yaml

@@ -10,7 +10,7 @@ spec:
         kubeletExtraArgs:
           provider-id: cloudstack:///'{{ ds.meta_data.instance_id }}'
     clusterConfiguration:
-      imageRepository: registry.k8s.io
+      imageRepository: ""
     joinConfiguration:
       nodeRegistration:
         name: '{{ local_hostname }}'

test/e2e/data/infrastructure-cloudstack/v1beta2/cluster-template-kubernetes-version-upgrade-before/before.yaml

@@ -10,7 +10,7 @@ spec:
         kubeletExtraArgs:
           provider-id: cloudstack:///'{{ ds.meta_data.instance_id }}'
     clusterConfiguration:
-      imageRepository: registry.k8s.io
+      imageRepository: ""
     joinConfiguration:
       nodeRegistration:
         name: '{{ local_hostname }}'

test/e2e/data/infrastructure-cloudstack/v1beta2/cluster-template-shared-network-kubevip/cluster-with-shared-network-and-kubevip.yaml

@@ -48,7 +48,7 @@ spec:
         kubeletExtraArgs:
           provider-id: "cloudstack:///'{{ ds.meta_data.instance_id }}'"
     clusterConfiguration:
-      imageRepository: registry.k8s.io
+      imageRepository: ""
     joinConfiguration:
       nodeRegistration:
         name: '{{ local_hostname }}'