trying out workaround to lowercase name1

Author: arruda

.github/workflows/docker-image.yml

@@ -27,12 +27,16 @@ jobs:
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
+    - name: Set lowercase repository name
+      run: |
+        echo "REPO_LOWER=${GITHUB_REPOSITORY,,}" >> $GITHUB_ENV
+
       - name: Build and push Docker image
         id: docker_build
         uses: docker/build-push-action@v6
         with:
           context: .
           push: true
-          tags: ghcr.io/${{ github.repository | toLower }}:latest
+          tags: ghcr.io/${{ env.REPO_LOWER }}:latest
           cache-from: type=gha
           cache-to: type=gha,mode=max