chore(deps): update helm chart common to v6.9.1 (#809)

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

charts/stable/reg/Chart.yaml

@@ -3,7 +3,7 @@ appVersion: auto
 dependencies:
 - name: common
   repository: https://truecharts.org/
-  version: 6.8.4
+  version: 6.9.1
 description: Docker registry v2 command line client and repo listing generator with
   security checks.
 home: https://github.com/truecharts/apps/tree/master/charts/incubator/reg
@@ -19,4 +19,4 @@ name: reg
 sources:
 - https://github.com/genuinetools/reg
 - https://github.com/k8s-at-home/container-images/
-version: 1.6.15
+version: 1.7.0