Ignore python3.8 warnings

Author: suztomo

pytest.ini

@@ -24,3 +24,5 @@ filterwarnings =
     ignore:You are using a Python version \(3\.9:FutureWarning
     # Remove after support for Python 3.10 is dropped
     ignore:.*You are using a Python version \(3\.10:FutureWarning
+    ignore:.*Please upgrade to the latest Python version.*:FutureWarning
+    ignore:(?s).*using a Python version.*past its end of life.*:FutureWarning