Update docs workflow

Author: sgreenbury

.github/workflows/docs.yaml

@@ -32,13 +32,10 @@ jobs:
                 cache-suffix: docs
                 activate-environment: true
             - uses: nikeee/setup-pandoc@v1
-            - name: "Install jupyterbook"
-              run: uv pip install -r docs/requirements.txt
-            - name: "Install autoemulate"
-              run: uv pip install -e .
+            - name: "Install autoemulate with extras: dev, docs"
+              run: uv pip install -e '.[dev,docs]'
             - name: "Run jupyterbook"
               run: |
-                cd docs
                 jupyter-book build docs --all 
             - name: "Deploy"
               uses: peaceiris/actions-gh-pages@v3