SQLStoreTest: Fix Spotbugs warning about return value ignored

The containsExactly method of IterableSubject returns an Ordered
object, and SpotBugs complains that it's ignored.

Add a further call to `inOrder` which not only silences the warning
but also makes the test stricter.

Change-Id: I45a46427af448579e35b83fbb465a145be1ce86c
1 file changed