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

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

charts/stable/node-red/Chart.yaml

@@ -3,7 +3,7 @@ appVersion: auto
 dependencies:
 - name: common
   repository: https://truecharts.org/
-  version: 6.8.4
+  version: 6.9.1
 deprecated: false
 description: Node-RED is low-code programming for event-driven applications
 home: https://github.com/truecharts/apps/tree/master/charts/incubator/node-red
@@ -20,4 +20,4 @@ name: node-red
 sources:
 - https://github.com/node-red/node-red-docker
 type: application
-version: 6.6.15
+version: 6.7.0