update Helm documentation

Author: github-actions[bot]

charts/navidrome/README.md

@@ -1,6 +1,6 @@
 # navidrome
 
-![Version: 6.7.5](https://img.shields.io/badge/Version-6.7.5-informational?style=flat-square) ![AppVersion: 0.58.0](https://img.shields.io/badge/AppVersion-0.58.0-informational?style=flat-square)
+![Version: 6.7.6](https://img.shields.io/badge/Version-6.7.6-informational?style=flat-square) ![AppVersion: 0.58.5](https://img.shields.io/badge/AppVersion-0.58.5-informational?style=flat-square)
 
 Navidrome is an open source web-based music collection server and streamer