Update assets-docs.yaml temporary upperbound

.github/workflows/assets-docs.yaml

@@ -59,7 +59,7 @@ jobs:
       - name: Use Python 3.10 or newer
         uses: actions/setup-python@v4
         with:
-          python-version: '>=3.10,<3.13'
+          python-version: '3.12'
 
       - name: Install dependencies
         run: pip install -e $main_dir/$scripts_azureml_assets_dir -r $main_dir/$scripts_docs_dir/requirements.txt