can not dynamically reference image

.github/workflows/ci.yml

@@ -30,14 +30,16 @@ jobs:
       name: github-pages
       url: ${{steps.deployment.outputs.page_url}}
     steps:
+      - id: repo-basename
+        run: 'echo "value=`basename ${{ github.repository }}`" >> $GITHUB_OUTPUT'
       - uses: actions/checkout@v4
       - name: Setup Pages
         id: pages
         uses: actions/[email protected]
       - name: Build documentation
         uses: Mpdreamz/docset-builder@main
         with:
-          prefix: 'docset-builder'
+          prefix: '${{ steps.repo-basename.outputs.value }}'
       - name: Upload artifact
         uses: actions/[email protected]
         with:

action.yml

@@ -12,5 +12,5 @@ inputs:
 
 runs:
   using: 'docker'
-  image: "docker://ghcr.io/${{ github.repository }}:edge"
+  image: "docker://ghcr.io/Mpdreamz/docset-builder:edge"