ci: Update tested K8S versions across all cloud providers

This commit revises the Kubernetes versions tested for compatibility across all supported cloud providers.
Additionally, it adjusts the default Kubernetes version to match the default version provided by each cloud provider

Signed-off-by: Birol Bilgin <birol@cilium.io>

.github/actions/aws/k8s-versions.yaml

@@ -1,16 +1,16 @@
 # List of k8s version for EKS tests
 ---
 include:
-  - version: "1.23"
-    region: ca-west-1
   - version: "1.24"
-    region: us-west-2
+    region: ca-west-1
   - version: "1.25"
-    region: us-west-1
+    region: us-west-2
   - version: "1.26"
-    region: us-east-2
+    region: us-west-1
   - version: "1.27"
-    region: ca-central-1
+    region: us-east-2
+    default: true
   - version: "1.28"
+    region: ca-central-1
+  - version: "1.29"
     region: us-east-1
-    default: true

.github/actions/azure/k8s-versions.yaml

@@ -11,7 +11,7 @@ include:
   - version: "1.27"
     location: eastus2
     index: 3
+    default: true
   - version: "1.28"
     location: eastus
     index: 4
-    default: true

.github/actions/gke/k8s-versions.yaml

@@ -1,19 +1,19 @@
 # List of k8s version for GKE tests
 ---
 k8s:
-  - version: "1.24"
+  - version: "1.25"
     zone: us-west1-b
     vmIndex: 1
-  - version: "1.25"
+  - version: "1.26"
     zone: us-west2-c
     vmIndex: 2
-  - version: "1.26"
+  - version: "1.27"
     zone: us-west3-a
     vmIndex: 3
-  - version: "1.27"
+    default: true
+  - version: "1.28"
     zone: us-east4-b
     vmIndex: 4
-  - version: "1.28"
+  - version: "1.29"
     zone: us-east1-c
     vmIndex: 5
-    default: true