add minimal-plus target

Author: khmyznikov

.github/workflows/dockerimage.yml

@@ -45,4 +45,5 @@ jobs:
         tags: ${{ steps.meta.outputs.tags }}
         labels: ${{ steps.meta.outputs.labels }}
         cache-from: type=gha
-        cache-to: type=gha,mode=max
+        cache-to: type=gha,mode=max
+        builder-args: --target minimal-plus