docker: add min-versions-to-keep option for cleanup step

This change ensures that at least one version of the GitHub Packages images is retained during the cleanup process.

Signed-off-by: Chiho Sin <[email protected]>

Author: chihosin

.github/workflows/docker_build.yml

@@ -92,4 +92,5 @@ jobs:
         with:
           package-name: ${{ github.repository }}
           package-type: container
+          min-versions-to-keep: 1
           delete-only-untagged-versions: true