Change GitHub token to personal access token

Author: jjjonesjr33

.github/workflows/auto-assign.yml

@@ -10,7 +10,7 @@ jobs:
       - name: Add new issues to Petlibro project
         uses: actions/github-script@v7
         with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
+          github-token: ${{ secrets.PERSONAL_GITHUB_TOKEN }}
           script: |
             const issue = context.payload.issue;
             const labels = issue.labels.map(l => l.name);