fix: install extras properly when building docs

.github/workflows/documentation.yml

@@ -15,15 +15,15 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: '3.10'
 
       - name: Dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install turftopic[pyro-ppl,docs]
+          pip install "turftopic[pyro-ppl,docs]"
 
       - name: Build and Deploy
         if: github.event_name == 'push'