Update docker-image.yml

.github/workflows/docker-image.yml

@@ -12,13 +12,16 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
+    - name: lowercase repository name
+      run: echo "IMAGE_NAME=${GITHUB_REPOSITORY@L}" >> ${GITHUB_ENV}
+      
     - uses: actions/checkout@v4
 
     - name: Log in to GitHub Container Registry
       run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
 
     - name: Build the Docker image
-      run: docker build . --file Dockerfile --tag ghcr.io/${{ github.repository_owner }}/${{ env.IMAGE_NAME }}:latest
+      run: docker build . --file Dockerfile --tag ghcr.io/${{ env.IMAGE_NAME }}:latest
 
     - name: Push the Docker image
-      run: docker push ghcr.io/${{ github.repository_owner }}/${{ env.IMAGE_NAME }}:latest
+      run: docker push ghcr.io/${{ env.IMAGE_NAME }}:latest