Throwable could be used as a type argument to catch(), but it would
possibly never be caught, because the method only catches Exception.
Notably, junit assertions fail with AssertionError, which is not a
subclass of Exception. Due to that, tests or utilities like
DeviceConfigRule that have failing assertions in catch() would not
run the subsequent cleanup steps.
Bug: 210377950
Test: atest CleanupTest
Change-Id: I54e2922cb466f077ba4d219f8c3c6f885316296c
a79814aade