chore(deps): update helm chart common to v6.12.1 (#850)

* chore(deps): update helm chart common to v6.12.1

* quick fix for custom-app

* another quick fix

Co-authored-by: Renovate Bot <bot@renovateapp.com>
Co-authored-by: kjeld Schouten-Lebbing <kjeld@schouten-lebbing.nl>

charts/stable/nullserv/Chart.yaml

@@ -3,7 +3,7 @@ appVersion: auto
 dependencies:
 - name: common
   repository: https://truecharts.org
-  version: 6.11.0
+  version: 6.12.1
 description: A simple null file http and https server
 home: https://github.com/truechartsapps/tree/master/charts/incubator/nullserv
 icon: https://miro.medium.com/max/800/1*UL9RWkTUtJlyHW7kGm20hQ.png
@@ -17,4 +17,4 @@ maintainers:
 name: nullserv
 sources:
 - https://github.com/bmrzycki/nullserv
-version: 1.7.0
+version: 1.8.0