Trying to fix gh ci.

.github/workflows/main_ci.yml

@@ -47,7 +47,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
 #          pip install -r requirements/requirements.txt
-          pip install .[dev]
+          python -m pip install .[dev]
 
 #      - name: Install pytest
 #        shell: bash