chore(deps): update helm chart common to v6.4.0 (#624)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

charts/incubator/airsonic/Chart.yaml

@@ -3,7 +3,7 @@ appVersion: auto
 dependencies:
 - name: common
   repository: https://truecharts.org/
-  version: 6.3.8
+  version: 6.4.0
 description: Airsonic is a Free and Open Source community driven media server
 home: https://github.com/truecharts/apps/tree/master/charts/incubator/airsonic
 icon: https://raw.githubusercontent.com/linuxserver/docker-templates/master/linuxserver.io/img/airsonic-logo.png
@@ -19,4 +19,4 @@ sources:
 - https://github.com/airsonic/airsonic
 - https://github.com/linuxserver/docker-airsonic
 - https://github.com/k8s-at-home/charts/tree/master/charts/airsonic
-version: 1.1.7
+version: 1.2.0