Fix permission issue from checkout action (#2558)

The checkout action needs a token for `git push` to work.

Also reverts the `git config` change.

.github/workflows/create-release-pr.yaml

@@ -11,18 +11,20 @@ jobs:
  prepare:
  runs-on: ubuntu-latest
  steps:
- - name: Checkout repository code
- uses: actions/checkout@v4
  - name: Get GitHub app token
  uses: actions/create-github-app-token@v1
  id: app_token
  with:
  app-id: ${{ env.APP_ID }}
  private-key: ${{ secrets.TOKEN_EXCHANGE_GH_APP_PRIVATE_KEY }}
+ - name: Checkout repository code
+ uses: actions/checkout@v4
+ with:
+ token: ${{ steps.app_token.outputs.token }}
  - name: Set up Git name and email
  run: |
- git config --global user.email "251311+buf-release-bot[bot]@users.noreply.github.com"
- git config --global user.name "buf-release-bot[bot]"
+ git config user.name "${{ github.actor }}"
+ git config user.email "${{ github.actor }}@users.noreply.github.com"
  - name: Create release PR
  run: bash ./make/buf/scripts/createreleasepr.bash
  env: