audio/ampache: Update to 5.6.0

Fix the .htaccess issues with newer Apache-- see patchfile. Submitted
upstream as pull request 3526
https://github.com/ampache/ampache/pull/3526

Changelog: https://github.com/ampache/ampache/blob/develop/docs/CHANGELOG.md