Use GitHub token for auto-approve workflow

.github/workflows/auto-approve-dominions-prs.yml

@@ -19,11 +19,18 @@ jobs:
     if: github.event.pull_request.user.id == 8171642 && !github.event.pull_request.draft && !contains(github.event.pull_request.body, '- [ ]') && (github.event.pull_request.base.repo.owner.login == 'tgstation' || github.event.pull_request.base.repo.owner.login == 'Cyberboss')
     runs-on: ubuntu-latest
     steps:
+      - name: Generate App Token
+        id: app-token-generation
+        uses: getsentry/action-github-app-token@d4b5da6c5e37703f8c3b3e43abb5705b46e159cc
+        with:
+          app_id: ${{ secrets.APP_ID }}
+          private_key: ${{ secrets.APP_PRIVATE_KEY }}
+
       - name: GitHub API Call
         run: |
           curl --request POST \
           --url https://api.github.com/repos/${{github.repository}}/pulls/${{github.event.number}}/reviews \
-          --header 'authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' \
+          --header 'authorization: Bearer ${{ steps.app-token-generation.outputs.token }}' \
           --header 'content-type: application/json' \
           -d '{"event":"APPROVE"}' \
           --fail