There is now a second .get() call in osc_lib.utils.find_resources.
These tests were failing because they only mocked a single access
call to .get(). Ensure there are two calls to .get(), with the
first one raising an exception.
Change-Id: Idd2ad4a27a6db5bee633cc37a1042dbb0a57aa71
Closes-Bug: #1599333