BRIDGE-838 E2E Tests of Swagger Def

# Summary

* Updated test, simplified the authorisation test. Replaced the older method by using the e2e-helper.

# Test Plan

* Run All tests
* Run E2E: get All ATPs 

Test Results

```

 E2E: List all ATPs receivable for payee
    Valid path

      ✓ with a valid path

    authorization

      ✓ is required to access the path


  2 passing (605ms)




```