test_matching: Use vcrpy

[hseg]

Requested Feature

In view of #2111, any test that hits API endpoints should be using vcrpy, if only to make the tests less flaky. This is done for the tests in test/*/, but not for test/test_matching.py.

Possible implementation

Just add @pytest.mark.vcr() to tests/test_matching.py::test_ytmusic_matching and generate the cassettes.