CallHub Phonebank Extension

This is request to distribute the CiviCRM extension for CallHub phonebanks via Automated distribution. This extension satisfies all the criteria for automated distribution as listed below.

1. The extension is published in the extensions directory. https://civicrm.org/extensions/civicrm-extension-for-callhub-phonebanks
2. I'm the maintainer of the extension
3. The extension manifest flags the release as 'stable'. https://github.com/callhub/io.callhub.phonebanking
4. The release is CMS-agnostic and it installs without any errors or notices.
5. This extension was demonstrated in CiviCON this year, in a lightning talk, as working without any problems. https://civicrm.org/sites/civicrm.org/files/webform/CallHub%20Integration%20with%20CiviCRM.pdf