Update mocks to use v2 of CTS API

[alerosad]

Description:

The mocks need to use the newest version of CTS API

Parent Issue: Spike https://github.com/NCIOCPL/clinical-trials-listing-app/issues/127

Sub-tasks:

• [ ] Go through and update the mocks to use v2 of the CTS API
• [ ] Check if any tests break, if so update accordingly

[sarinapadilla]

Closing this ticket as the update to CTS API v2 has been launched.