chore(android): Enable tombstone feature via AndroidManifest.xml (#5092)

#skip-changelog

Author: markushi

sentry-samples/sentry-samples-android/src/main/AndroidManifest.xml

@@ -256,5 +256,8 @@
     <meta-data 
       android:name="io.sentry.spotlight.enable"
       android:value="true" />
+    <meta-data 
+      android:name="io.sentry.tombstone.enable"
+      android:value="true" />
   </application>
 </manifest>