Action to update pnpm-lock.yaml when Dependabot opens a PR. Be warned that this may cause lots of merge conflicts.

update-lockfile.yml

# https://github.com/dependabot/dependabot-core/issues/1736
name: Dependabot
on: pull_request_target
permissions: read-all
jobs:
  update-lockfile:
    runs-on: ubuntu-latest
    if: ${{ github.actor == 'dependabot[bot]' }}
    permissions:
      pull-requests: write
      contents: write
    steps:
    - uses: pnpm/action-setup@v2
      with:
        version: ^7
    - uses: actions/checkout@v3
      with:
        ref: ${{ github.event.pull_request.head.ref }}
    - run: pnpm i --lockfile-only
    - run: |
        git config --global user.name github-actions[bot]
        git config --global user.email github-actions[bot]@users.noreply.github.com
        git add pnpm-lock.yaml
        git commit -m "Update pnpm-lock.yaml"
        git push

Hi, using the code in the project it gave me the error when trying to update a repo with ssh, showing the error below:

ERROR  Command failed with exit code 128: git ls-remote --refs git+ssh://git@github.com/xxxxxxxx/xxxxxxx.git
git@github.com: Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

Can you help me with this error?