fix(github): fix err with upper case

.github/workflows/demo.yaml

@@ -8,7 +8,6 @@ on:
 
 env:
   REGISTRY: ghcr.io
-  IMAGE_NAME: ${{ github.repository }}   # будет 'blackcorbeau/MyResume'
 
 jobs:
   build-and-push:
@@ -24,12 +23,16 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
+      - name: Convert repository name to lowercase
+        run: |
+          echo "IMAGE_NAME=$(echo ${{ github.repository }} | tr '[:upper:]' '[:lower:]')" >> $GITHUB_ENV
+
       - name: Log in to GitHub Container Registry
         uses: docker/login-action@v3
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}   # или CR_PAT, о чём ниже
+          password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build and push Docker image
         uses: docker/build-push-action@v5