Allow Sv2 in launcher build version

Bug: 195632795
Test: atest NexusLauncherTests:com.google.android.apps.nexuslauncher.wellbeing.WellbeingTests#testPauseAppFromOverview
Change-Id: If0c047bfc64e17de71e9861e27c3a1373577e398

tests/src/com/android/launcher3/util/rule/TestStabilityRule.java

@@ -41,7 +41,7 @@ public class TestStabilityRule implements TestRule {
             Pattern.compile("^("
                     + "(?<local>(BuildFromAndroidStudio|"
                     + "([0-9]+|[A-Z])-eng\\.[a-z]+\\.[0-9]+\\.[0-9]+))|"
-                    + "(?<platform>[A-Z][a-z]*)"
+                    + "(?<platform>[A-Z]([a-z]|[0-9])*)"
                     + ")$");
     private static final Pattern PLATFORM_BUILD =
             Pattern.compile("^("