無限ループの修正...

[yasuraok]

• https://stackoverflow.com/a/73100010
• https://stackoverflow.com/questions/69263843/how-to-push-to-protected-main-branches-in-a-github-action/73100010#comment131690328_73100010
• https://docs.github.com/ja/actions/managing-workflow-runs/skipping-workflow-runs