try to fix a Dependabot error

try to fix a Dependabot error

```
updater | ERROR <job_232492775> Error processing actions/checkout (RuntimeError)
updater | ERROR <job_232492775> No files changed!
updater | ERROR <job_232492775> /home/dependabot/dependabot-updater/vendor/ruby/2.7.0/gems/dependabot-github_actions-0.166.0/lib/dependabot/github_actions/file_updater.rb:28:in `updated_dependency_files'
updater | ERROR <job_232492775> /home/dependabot/dependabot-updater/lib/dependabot/updater.rb:676:in `generate_dependency_files_for'
updater | ERROR <job_232492775> /home/dependabot/dependabot-updater/lib/dependabot/updater.rb:274:in `check_and_create_pull_request'
updater | ERROR <job_232492775> /home/dependabot/dependabot-updater/lib/dependabot/updater.rb:82:in `check_and_create_pr_with_error_handling'
updater | ERROR <job_232492775> /home/dependabot/dependabot-updater/lib/dependabot/updater.rb:56:in `block in run'
updater | ERROR <job_232492775> /home/dependabot/dependabot-updater/lib/dependabot/updater.rb:56:in `each'
updater | ERROR <job_232492775> /home/dependabot/dependabot-updater/lib/dependabot/updater.rb:56:in `run'
updater | ERROR <job_232492775> /home/dependabot/dependabot-updater/lib/dependabot/update_files_job.rb:17:in `perform_job'
updater | ERROR <job_232492775> /home/dependabot/dependabot-updater/lib/dependabot/base_job.rb:28:in `run'
updater | ERROR <job_232492775> bin/update_files.rb:21:in `<main>`
```