ci: update docs workflow

Author: OgeonX-Ai

.github/workflows/ci-docs.yml

@@ -13,11 +13,11 @@ jobs:
   docs-quality:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@v6
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.12'
       - name: Verify repository structure
         run: python scripts/verify_repo.py
       - name: Run structure tests
-        run: python -m pytest tests
+        run: python -m unittest discover tests