Merge pull request #2 from CyberAgentAILab/feat/setup

Fix: use pipenv for document pipeline

.github/workflows/build-doc.yml

@@ -17,10 +17,14 @@ jobs:
       with:
         python-version: '3.11'
 
-    - name: Install dependencies
+    - name: Install pipenv
       run: |
         python -m pip install --upgrade pip
-        pip install sphinx sphinx_rtd_theme
+        pip install pipenv
+    
+    - name: Install dependencies
+      run: |
+        pipenv install --dev
 
     - name: Build documentation
       run: |