fix: Update docker-publish.yml adding step for creating .env

.github/workflows/docker-publish.yml

@@ -65,6 +65,9 @@ jobs:
         uses: docker/metadata-action@96383f45573cb7f253c731d3b3ab81c87ef81934 # v5.0.0
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          
+      - name: Create .env file
+        run: echo DATABASE_URL=${{ secrets.DATABASE_URL }} > .env
 
       # Build and push Docker image with Buildx (don't push on PR)
       # https://github.com/docker/build-push-action