Do not remove tags without release for now for safety

* See ruby/setup-ruby#826

Author: eregon

.github/workflows/build.yml

@@ -192,4 +192,4 @@ jobs:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
         n: 3
-        remove_tags_without_release: true
+        remove_tags_without_release: false