Update API unit tests to pass query data in a non-deprecated way.
Review Request #10617 — Created July 3, 2019 and submitted
Some of the API unit tests for Review Board were passing in query data
using a method no longer supported in Djblets, passing
data=. That support is being removed in Djblets 2.0.
This change updates the few test suites still using the deprecated
All unit tests pass against Djblets 2.0 (with the deprecations removal