(feat) Standardise and Harden default app securitycontext (#1028)

* Apply security hardened defaults to values.yaml for all apps

* Add default common securityContext to all apps

* Adjust securityContext defaults in questions.yaml, according to values.yaml

* Add default common podSecurityContext to all apps

* Clean whitespace

* Clean more whitespace

* Adjust podSecurityContext defaults in questions.yaml, according to values.yaml

* fix pgadmin

Co-authored-by: Stavros kois <s.kois@outlook.com>

charts/stable/traefik/Chart.yaml

@@ -1,9 +1,9 @@
 apiVersion: v2
-appVersion: "2.5.3"
+appVersion: 2.5.3
 dependencies:
 - name: common
-  repository: https://truecharts.org/
-  version: 7.0.14
+  repository: https://truecharts.org
+  version: 8.0.7
 deprecated: false
 description: Test App for Traefik
 home: https://github.com/truecharts/apps/tree/master/charts/stable/traefik
@@ -22,4 +22,4 @@ sources:
 - https://github.com/traefik/traefik-helm-chart
 - https://traefik.io/
 type: application
-version: 8.0.4
+version: 9.0.0