Migrate away from deprecated Truth APIs.

This is a transitional step towards truth 1.0.1, where these APIs have
been completely removed.

Bug: 168765701
Test: m checkbuild
Merged-In: I76f9c37cb699ce6ab8715ffe35d11668ccbceea1
Change-Id: I76f9c37cb699ce6ab8715ffe35d11668ccbceea1
(cherry picked from commit 46e85a2fad)

tests/robotests/src/com/android/settings/datetime/timezone/model/TimeZoneDataTest.java

@@ -54,7 +54,7 @@ public class TimeZoneDataTest {
         when(countryTimeZones.getTimeZoneMappings()).thenReturn(emptyList());
         when(mCountryZonesFinder.lookupCountryTimeZones("US")).thenReturn(countryTimeZones);
         assertThat(timeZoneData.lookupCountryTimeZones("US").getCountryTimeZones())
-                .isSameAs(countryTimeZones);
+                .isSameInstanceAs(countryTimeZones);
     }
 
     @Test