Revert "Join commands and try again"

This reverts commit c8dd9233.

Dockerfile

@@ -23,4 +23,4 @@ CMD ["poetry", "run", "python", "manage.py", "runserver", "0.0.0.0:8000"]
 FROM base AS prod
 
 COPY . .
-CMD ["poetry", "run", "gunicorn -b 0.0.0.0:8000 -w $(nproc) steering.wsgi"]
+CMD ["poetry", "run", "gunicorn", "-b", "0.0.0.0:8000", "-w", "$(nproc)", "steering.wsgi"]