chore: log_level is better than log_cli_level (pybind#5890)

Author: henryiii

tests/pytest.ini

@@ -9,7 +9,7 @@ addopts =
     --capture=sys
     # Show local info when a failure occurs
     --showlocals
-log_cli_level = info
+log_level = INFO
 filterwarnings =
     # make warnings into errors but ignore certain third-party extension issues
     error