Make NoPackageObserver in lifecycle test public

Making NoPackageObserver public to try to fix issue when upgrading to
Mockito.

Test: This changed a test
Fixes: 239965665
Change-Id: I037bd6cc6aa5656928d3ce5687c69b7e865b7ad7
diff --git a/lifecycle/lifecycle-runtime/src/test/java/NoPackageObserver.java b/lifecycle/lifecycle-runtime/src/test/java/NoPackageObserver.java
index 82fd7f5..60bc171 100644
--- a/lifecycle/lifecycle-runtime/src/test/java/NoPackageObserver.java
+++ b/lifecycle/lifecycle-runtime/src/test/java/NoPackageObserver.java
@@ -19,7 +19,7 @@
 import androidx.lifecycle.LifecycleObserver;
 
 @SuppressWarnings("deprecation")
-class NoPackageObserver implements LifecycleObserver {
+public class NoPackageObserver implements LifecycleObserver {
     @androidx.lifecycle.OnLifecycleEvent(ON_CREATE)
     void onCreate() {
     }