Can an Action make commits without explicitly setting an access token?

Is there any way I can get my GitHub Action to make a commit to my repo without explicitly setting an accesss token in the workflow file?

Yes, GitHub automatically creates a GITHUB_TOKEN secret to use in your workflow. You can use the GITHUB_TOKEN to authenticate in a workflow run. Copied from: https://help.github.com/en/actions/automating-your-workflow-with-github-actions/authenticating-with-the-github_token#about-the-github_token-secret