ci: fix release-drafter publishing condition (#19)

Co-authored-by: ubill-ci[bot] <214821999+ubill-ci[bot]@users.noreply.github.com>

Author: ubill-ci[bot]

.github/workflows/release-drafter.yaml

@@ -9,6 +9,7 @@ on:
       - opened
       - reopened
       - synchronize
+      - closed
 
 jobs:
   update-release-draft: