GitHub doesn't make it obvious to me how [Commit 4abe391](https://github.com/confluentinc/cp-ansible/commit/4abe39172f13b5900a1db838b223c6dcd59bdc56) entered the repo, but it effectively [removed support for the `ssl_mutual_auth_enabled` listener property](https://github.com/confluentinc/cp-ansible/commit/4abe39172f13b5900a1db838b223c6dcd59bdc56#diff-970eabe424e57bd1250088be0d4a352b7e43888751be62f816276bd462f7de8aL190) in the same release that [marked it as deprecated](https://github.com/confluentinc/cp-ansible/pull/1831/files#diff-a4ad1fd8c4ac81dd5cf1d457dc95ff26600f13fb7978cfed6df199d689735be1L506). Just for your information.