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
Change-Id: I76f9c37cb699ce6ab8715ffe35d11668ccbceea1

tests/robotests/src/com/android/settings/wifi/ConfigureWifiSettingsTest.java

@@ -36,6 +36,6 @@ public class ConfigureWifiSettingsTest {
 
         final List<String> keys = XmlTestUtils.getKeysFromPreferenceXml(mContext, xmlId);
         assertThat(keys).isNotNull();
-        assertThat(niks).containsAllIn(keys);
+        assertThat(niks).containsAtLeastElementsIn(keys);
     }
 }