fix: database url

Author: Gwonyeong

.github/workflows/auto-cd(prod).yaml

@@ -22,6 +22,7 @@ env:
   SERVER_DATABASE_URL: ${{ inputs.command == 'prod' && secrets.PROD_DATABASE_URL || secrets.DEV_DATABASE_URL }}
   SERVER_CONFIG: ${{ inputs.command == 'prod' && secrets.PROD_CONFIG || secrets.DEV_CONFIG }}
   AWS_ECR_URI: ${{ secrets.AWS_ECR_URI }}
+  DOCKER_FILE: ${{ inputs.command == 'prod' && 'prod.dockerfile' || 'dev.dockerfile' }}
   DOCKER_IMAGE_TAG: ${{ inputs.command == 'prod' && '' || '-dev' }}
   DEPLOY_PATH: choose-tale/Backend
   BRANCH: ${{github.ref_name}}
@@ -55,7 +56,7 @@ jobs:
 
       - name: aws ecr build
         run: |
-          docker build -f dev.dockerfile -t ${{ secrets.AWS_ECR_URI }}/choosetale:backend${{ env.DOCKER_IMAGE_TAG }} .
+          docker build -f ${{ env.DOCKER_FILE }} -e DATABASE_URL=${{ env.SERVER_DATABASE_URL }} -t ${{ secrets.AWS_ECR_URI }}/choosetale:backend${{ env.DOCKER_IMAGE_TAG }} .
 
       - name: aws ecr push
         run: |