Update EKS configuration for test cluster deployments

Signed-off-by: jaehanbyun <awbrg789@naver.com>

Author: jaehanbyun

hack/eks-config.yaml

@@ -0,0 +1,21 @@
+apiVersion: eksctl.io/v1alpha5
+kind: ClusterConfig
+availabilityZones:
+  - ap-northeast-2a
+  - ap-northeast-2c
+metadata:
+  name: my-cluster
+  region: ap-northeast-2
+  version: "1.30"
+iam:
+  withOIDC: true
+vpc:
+  cidr: 10.10.0.0/16
+  clusterEndpoints:
+    privateAccess: true
+    publicAccess: true
+managedNodeGroups:
+  - name: default
+    desiredCapacity: 3
+    instanceType: t3.medium
+    privateNetworking: true