Update build-image-test.yaml

Author: MaxymVlasov

.github/workflows/build-image-test.yaml

@@ -61,7 +61,7 @@ jobs:
       # Lowercase the org/repo name to allow for workflow to run in forks,
       # which owners have uppercase letters in username
       run: >-
-        echo "IMAGE=ghcr.io/${GITHUB_REPOSITORY@L}:${{ env.IMAGE_TAG }}"
+        echo "IMAGE=ghcr.io/${{ github.repository | lower }}:${{ env.IMAGE_TAG }}"
         >> $GITHUB_ENV
 
     - name: Setup docker (missing on MacOS)