Do not throw exception in refreshIntentCreatorToken

In case the intent does not contain a creator token, which could
be null where ResolverActivity calls it, simply return it without
refresh it.

Bug: 381934057
Test: FrameworkOptCarServicesTest:com.android.car.rotary.ActivityResolverTest#testClickListItem_threeItems
Flag: EXEMPT bugfix
Change-Id: I5959d1af89cfafebee0f7b364f9988cdf2b6c8e3