Updating Metalava to version 1.2.5

Also regenerating the API txts to match

Bug: 123289576

Test: ./gradlew updateApi && git status

Change-Id: I3e772f3140f4ac4fe2faf419e735423bfbe02f85

diff --git a/activity/ktx/api/1.0.0-alpha04.txt b/activity/ktx/api/1.0.0-alpha04.txt
index 7ca91fa..be35c63 100644
--- a/activity/ktx/api/1.0.0-alpha04.txt
+++ b/activity/ktx/api/1.0.0-alpha04.txt

@@ -1,8 +1,9 @@
-// Signature format: 2.0
+// Signature format: 3.0
 package androidx.activity {
 
   public final class ActivityViewModelLazyKt {
     ctor public ActivityViewModelLazyKt();
+    method @MainThread public static inline <reified VM extends androidx.lifecycle.ViewModel> kotlin.Lazy<VM>! viewModels(androidx.activity.ComponentActivity, kotlin.jvm.functions.Function0<? extends androidx.lifecycle.ViewModelProvider.Factory>! factoryProducer = null);
   }
 
 }