Invalid json in modules/contrib/views_display_switch/composer.json

Problem/Motivation

When running... drush updb

You get warning message saying:
Invalid json in modules/contrib/views_display_switch/composer.json

Steps to reproduce

Simply require using composer composer require 'drupal/views_display_switch:^1.1'
then install module as usual. Upon running drush updb you get warning message on drush screen.

Proposed resolution

Around line 9 of composer.json the "source" line has a comma at the end that should not be there.

Not an error or a big problem but maybe fix warning by next release?

Thank you.