ignore pet test for now

[dvoet]

Ticket: https://broadworkbench.atlassian.net/browse/QA-1300
temporarily ignore test until hierarchical roles done

---

PR checklist

• I've followed the instructions if I've made any changes to the API, especially if they're breaking changes
• I've updated the RC_XXX release ticket with any manual steps required to release this change
• I've updated the FISMA documentation if I've made any security-related changes, including auth, encryption, or auditing

[coveralls]

Coverage remained the same at 78.618% when pulling b4b09e7 on disable_pet_test into 1da6a79 on develop.

[dvoet]

jenkins retest

[dvoet]

this change just ignores a test and should not cause any problems. Repeated test runs showed unrelated failures.