AGP 9 only creates unit tests for the debug test build type, so the :testRelease tasks the
nightly/beta/release build-components graphs ran no longer exist. Update CI's remaining unit-test
invocations from testRelease to test (the default build-components graph and the dependency-fetch
script), and for the shipping graphs drop the unit-test task entirely rather than switch it to the
debug variant.
Switching release jobs to :test would force them to compile the debug variant, which they
otherwise never build as part of producing shipping artifacts. It also adds no signal: the
android-components unit tests already run on every push via the default graph, so re-running them
on the shipping graphs is redundant. This matches the existing include-coverage configuration,
which is already default-only.
Differential Revision: https://phabricator.services.mozilla.com/D309479
Ryan VanderMeulen
4a6600e992