fix(cd): 安裝 kustomize 到 runner

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.github/workflows/cd.yaml

@@ -83,6 +83,11 @@ jobs:
           echo "${{ secrets.KUBE_CONFIG_PROD }}" | base64 -d > ~/.kube/config
           chmod 600 ~/.kube/config
 
+      - name: Install Kustomize
+        run: |
+          curl -s "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh" | bash
+          sudo mv kustomize /usr/local/bin/
+
       - name: Generate image tag
         id: tag
         run: |