Update GitHub Actions workflow to include a personal access token for…

… checkout

.github/workflows/repo__auto-update-dev-branch.yml

@@ -13,6 +13,7 @@ jobs:
       - uses: actions/checkout@v2
         with:
           fetch-depth: 0
+          token: ${{ secrets.PAT }}
       - name: Merge main -> develop
         run: |
           git config user.name github-actions