try resolve bug lower case

Author: JamesDAdams

.github/workflows/docker-image.yml

@@ -26,8 +26,12 @@ jobs:
 
       - name: Build Docker image
         run: |
-          docker build -t ghcr.io/${{ github.repository }}:latest ./docker
+          IMAGE_NAME="ghcr.io/${{ github.repository }}" 
+          IMAGE_NAME_LC=$(echo "$IMAGE_NAME" | tr '[:upper:]' '[:lower:]')
+          docker build -t ${IMAGE_NAME_LC}:latest ./docker
 
       - name: Push Docker image
         run: |
-          docker push ghcr.io/${{ github.repository }}:latest
+          IMAGE_NAME="ghcr.io/${{ github.repository }}" 
+          IMAGE_NAME_LC=$(echo "$IMAGE_NAME" | tr '[:upper:]' '[:lower:]')
+          docker push ${IMAGE_NAME_LC}:latest