kind: Pick up the latest kindest/node image

Also update kubeadm.k8s.io API version from v1beta2 to v1beta3.

Ref: #2720

Suggested-by: Joe Stringer <joe@isovalent.com>
Signed-off-by: Michi Mutsuzaki <michi@isovalent.com>

.github/kind-config-1.yaml

@@ -2,7 +2,7 @@ kind: Cluster
 apiVersion: kind.x-k8s.io/v1alpha4
 nodes:
   - role: control-plane
-    image: kindest/node:v1.23.6
+    image: kindest/node:v1.30.2
     kubeadmConfigPatches:
       # To make sure that there is no taint for master node.
       # Otherwise, additional worker node might be required for conformance testing.
@@ -12,9 +12,9 @@ nodes:
         nodeRegistration:
           taints: []
   - role: worker
-    image: kindest/node:v1.23.6
+    image: kindest/node:v1.30.2
   - role: worker
-    image: kindest/node:v1.23.6
+    image: kindest/node:v1.30.2
     labels:
       cilium.io/no-schedule: "true"
 networking:

.github/kind-config-2.yaml

@@ -2,7 +2,7 @@ kind: Cluster
 apiVersion: kind.x-k8s.io/v1alpha4
 nodes:
   - role: control-plane
-    image: kindest/node:v1.23.6
+    image: kindest/node:v1.30.2
     kubeadmConfigPatches:
       # To make sure that there is no taint for master node.
       # Otherwise, additional worker node might be required for conformance testing.
@@ -12,7 +12,7 @@ nodes:
         nodeRegistration:
           taints: []
   - role: worker
-    image: kindest/node:v1.23.6
+    image: kindest/node:v1.30.2
 networking:
   disableDefaultCNI: true
   podSubnet: "10.202.0.0/16"

.github/kind-config.yaml

@@ -3,24 +3,24 @@ apiVersion: kind.x-k8s.io/v1alpha4
 name: chart-testing
 nodes:
   - role: control-plane
-    image: kindest/node:v1.21.10
+    image: kindest/node:v1.30.2
     kubeadmConfigPatches:
       # To make sure that there is no taint for master node.
       # Otherwise additional worker node might be required for conformance testing.
       - |
-        apiVersion: kubeadm.k8s.io/v1beta2
+        apiVersion: kubeadm.k8s.io/v1beta3
         kind: InitConfiguration
         nodeRegistration:
           taints: []
   - role: worker
-    image: kindest/node:v1.21.10
+    image: kindest/node:v1.30.2
   # Two extra nodes without Cilium to use for --external-ip and --external-other-ip.
   - role: worker
-    image: kindest/node:v1.21.10
+    image: kindest/node:v1.30.2
     labels:
       cilium.io/no-schedule: "true"
   - role: worker
-    image: kindest/node:v1.21.10
+    image: kindest/node:v1.30.2
     labels:
       cilium.io/no-schedule: "true"
 networking: