ci: debug dependabot snapshot updates

Author: tekumara

.github/workflows/ci.yml

@@ -26,6 +26,8 @@ jobs:
           git config user.name snapshots
           git config user.email snapshots@users.noreply.github.com
           git status
+          # debug https://github.com/tekumara/python-typed-template/issues/126
+          git ls-remote
           git add .
           if git commit -m "chore: update snapshots"; then
             git push