Fix and reenable `Interruptible::WaitUntilDeadline` test

TEST(Interruptible, WaitUntilDeadline) {

    auto interruptible = std::make_unique<DummyInterruptible>();

    const auto sleepFor = Milliseconds(500);

    auto mutex = MONGO_MAKE_LATCH();

    stdx::condition_variable cv;

    stdx::unique_lock<Latch> lk(mutex);

    const auto start = Date_t::now();

    Date_t deadline = start + sleepFor;

    interruptible->waitForConditionOrInterruptUntil(cv, lk, deadline, []() { return false; });

    const auto end = Date_t::now();

    ASSERT_GTE(end, deadline - DummyInterruptible::kPrecision);

    ASSERT_LTE(end, deadline + DummyInterruptible::kPrecision);

}