Update alpine-mainline.yml

Author: alessfg

.github/workflows/alpine-mainline.yml

@@ -184,7 +184,7 @@ jobs:
       - name: Download image tarballs
         uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
         with:
-          name: images-*
+          name: alpine-slim-*
           path: /tmp/images
           merge-multiple: true