python3Packages.directv: fix tests on Darwin

Changed files
+2
pkgs
development
python-modules
directv
+2
pkgs/development/python-modules/directv/default.nix
···
pytestCheckHook
];
+
__darwinAllowLocalNetworking = true;
+
disabledTests = [
# ValueError: Host '#' cannot contain '#' (at position 0)
"test_client_error"