add region to aws credential step

Author: cupofpython

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

@@ -30,7 +30,7 @@ jobs:
         uses: aws-actions/configure-aws-credentials@v2
         with:
           role-to-assume: ${{ secrets.GH_ACTIONS_ROLE }}
-          aws-region: ${{ secrets.AWS_REGION }}
+          aws-region: ${{ env.AWS_REGION }}
 
       - name: Update kube config
         run: aws eks update-kubeconfig --name ${{ env.EKS_CLUSTER_NAME }} --region ${{ env.AWS_REGION }}