When using a GitHub Application token for authentication in your workflow, you need to make a few adjustments to the checkout step. The actions/checkout action does not support using the token parameter with a GitHub Application token directly.

To authenticate with a GitHub Application token, you can use the @actions/checkout action with a specific version (v2.3.4 or higher) that supports the repository and ref parameters. Here’s an example of how you can modify your workflow:

- name: Checkout repository
  uses: actions/checkout@v2.3.4
  with:
    repository: owner/repo
    ref: ${{ github.ref }}
    token: ${{ secrets.GITHUB_TOKEN }}

In the above example, replace owner/repo with the actual repository you want to check out.

By specifying the token parameter as ${{ secrets.GITHUB_TOKEN }}, it will automatically use the token provided by GitHub for the workflow, which should have sufficient permissions for most operations.

Make sure to use the @v2.3.4 version or a higher version that supports the repository and ref parameters for using the GitHub Application token in the checkout action.

Remember to grant the necessary permissions to your GitHub Application to perform the required actions on the repository. You can manage the application’s permissions in the repository’s settings under “Installed GitHub Apps.”

With these modifications, you should be able to use a GitHub Application token for higher permissions during the checkout and subsequent steps in your workflow.