Change package name in docker-cleanup workflow

Author: jamesmoore

.github/workflows/docker-cleanup.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
     - uses: actions/delete-package-versions@v5
       with: 
-        package-name: 'autogram-solver'
+        package-name: 'sdmeta'
         package-type: 'container'
         min-versions-to-keep: 10
         delete-only-untagged-versions: false