Pin pytest

setup.py

@@ -28,7 +28,7 @@
         "flaky>=3.7.0",
         "hypothesis>=3.31.2",
         "importlib-metadata<5.0;python_version<'3.8'",
-        "pytest>=7.0.0",
+        "pytest>=7.0.0,<8.1",
         "pytest-asyncio>=0.18.1,<0.23",
         "pytest-mock>=1.10",
         "pytest-watch>=4.2",