Fix adding users/groups to a conversation

Signed-off-by: Joas Schilling <coding@schilljs.com>

app/src/main/java/com/nextcloud/talk/jobs/AddParticipantsToConversation.java

@@ -66,7 +66,7 @@ public class AddParticipantsToConversation extends Worker {
         String[] selectedGroupIds = data.getStringArray(BundleKeys.INSTANCE.getKEY_SELECTED_GROUPS());
         UserEntity user = userUtils.getUserWithInternalId(data.getLong(BundleKeys.INSTANCE.getKEY_INTERNAL_USER_ID(), -1));
 
-        int apiVersion = ApiUtils.getConversationApiVersion(user, new int[] {1});
+        int apiVersion = ApiUtils.getConversationApiVersion(user, new int[] {ApiUtils.APIv4, 1});
 
         String conversationToken = data.getString(BundleKeys.INSTANCE.getKEY_TOKEN());
         String credentials = ApiUtils.getCredentials(user.getUsername(), user.getToken());