Woops, add step that installs uv

Author: olivialynn

python-project-template/.github/workflows/{% if include_docs %}build-documentation.yml{% endif %}.jinja

@@ -25,6 +25,8 @@ jobs:
       uses: actions/setup-python@v5
       with:
         python-version: '{{ py.pref(python_versions) }}'
+    - name: Install uv
+      uses: astral-sh/setup-uv@v7
     - name: Install dependencies
       run: |
         sudo apt-get update