edit image tags in the workflow

Author: Cinex10

.github/workflows/mlops_workflow.yml

@@ -5,6 +5,7 @@ on:
     branches: [ main ]
   pull_request:
     branches: [ main ]
+
 env:
   # Setting an environment variable with the value of a configuration variable
   ECR_BACKEND_IMAGE: ${{ vars.ECR_BACKEND_IMAGE }}
@@ -88,7 +89,7 @@ jobs:
         push: true
         platforms: linux/amd64,linux/arm64
         tags: |
-          ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.$AWS_DEFAULT_REGION.amazonaws.com/$ECR_BACKEND_IMAGE:latest
+          ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.${{ env.AWS_DEFAULT_REGION}}.amazonaws.com/${{ env.ECR_BACKEND_IMAGE}}:latest
     
     - name: Clean up .env
       run: rm .env