Fix installation of package

.github/workflows/build_docs.yml

@@ -16,10 +16,12 @@ jobs:
       with:
         python-version: '3.10'
 
+    - name: Install Poetry
+      uses: snok/install-poetry@v1
+
     - name: Install Dependencies
       run: |
-        python -m pip install --upgrade pip
-        pip install -e .
+        poetry install
       shell: bash
 
     - name: Build documentation