fix requirement install in ci

.github/workflows/pull_request.yml

@@ -111,7 +111,8 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install --no-deps ".[dev]"
+          pip install --no-deps .
+          pip install pytest
           pip install -r requirements.txt
 
       - name: Initialize submodules