Catch Error when dumping thread states in IdlingPolicy.

Expand the catch block to include `Error` types in addition to `RuntimeException` when calling `TestOutputEmitter.dumpThreadStates`. This ensures that any issues during thread state dumping are suppressed and added to the `AppNotIdleException`, preserving the original exception as the primary cause.

`java.lang.ExceptionInInitializerError` can happen when static initializing `TestOutputEmitter` if more than one service is discovered.

PiperOrigin-RevId: 802644040

Author: copybara-androidxtest

espresso/core/java/androidx/test/espresso/IdlingPolicy.java

@@ -63,7 +63,7 @@ public void handleTimeout(List<String> busyResources, String message) {
             AppNotIdleException.create(busyResources, message);
         try {
           TestOutputEmitter.dumpThreadStates("ThreadState-AppNotIdleException.txt");
-        } catch (RuntimeException e) {
+        } catch (RuntimeException | Error e) {
           appNotIdleException.addSuppressed(e);
         }
         throw appNotIdleException;