Fix build-sqlfile workflow: use PAT to bypass branch protection

The default GITHUB_TOKEN cannot push directly to main when branch
protection rules require PRs and status checks. Switch to a PAT
stored as a repo secret, and bump actions/checkout to v4.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: erikdarlingdata

.github/workflows/build-sqlfile.yml

@@ -9,9 +9,10 @@ jobs:
   build-sql-file:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
+          token: ${{ secrets.PAT_TOKEN }}
       - name: Checkout Code
         run: |
           git config --global user.name 'Darling Data'