This is a follow-up from SWATCH-3625 

Update the test setup to mock the used product:

• test_terminate_subscription

currently the products api wiremock doesn't have a product setup for: mock/product/products/MW02393/tree

The component tests should pass when run locally following the steps on https://inscope.corp.redhat.com/docs/default/Component/swatch-internal-docs/IQE/IQE%20local%20setup/

Acceptance criteria: The following should pass:
`iqe tests plugin rhsm_subscriptions -k test_terminate_subscription`