android: Enable onBackInvokedCallback

For now this enables the ability to see the new Android 13 back gesture animations but later we can create custom animations that follow the back gesture.

src/android/app/src/main/AndroidManifest.xml

@@ -28,7 +28,8 @@
         android:banner="@drawable/ic_launcher"
         android:extractNativeLibs="true"
         android:fullBackupContent="@xml/data_extraction_rules"
-        android:dataExtractionRules="@xml/data_extraction_rules_api_31">
+        android:dataExtractionRules="@xml/data_extraction_rules_api_31"
+        android:enableOnBackInvokedCallback="true">
 
         <activity
             android:name="org.yuzu.yuzu_emu.ui.main.MainActivity"