fix(ci): 🐛 use PAT to trigger CI from changelog PR (#11)

GITHUB_TOKEN cannot trigger other workflows by design.
Using PAT_TOKEN allows the changelog PR to trigger CI checks.

Co-authored-by: Claude <noreply@anthropic.com>

Author: jorben

.github/workflows/changelog.yml

@@ -29,7 +29,7 @@ jobs:
       - name: Create Pull Request
         uses: peter-evans/create-pull-request@v7
         with:
-          token: ${{ github.token }}
+          token: ${{ secrets.PAT_TOKEN }}
           commit-message: "docs: update CHANGELOG.md for ${{ github.ref_name }}"
           title: "docs: update CHANGELOG.md for ${{ github.ref_name }}"
           body: |