ci: write kube config to file

.github/workflows/deploy-to-staging.yml

@@ -82,6 +82,12 @@ jobs:
         with:
           version: "${{ env.HELM_VERSION }}"
 
+      - name: write kube config
+        run: |
+          mkdir -p $HOME/.kube/
+          echo "${{ secrets.KUBE_CONFIG }}" > $HOME/.kube/config
+          chmod 600 $HOME/.kube/config
+
       - name: deploy dry run
         run: |
           helm upgrade \