update pytest requirements

server/requirements.txt

@@ -44,7 +44,7 @@ black==23.7
 isort==5.13.2
 flake8==7.0.0
 pytest==8.2.0
-pytest-django==4.7.0
+pytest-django==4.9.0
 pytest-asyncio==0.23.7
 pytest-cov==5.0.0
 pytest-rerunfailures==14.0