REFACTOR(headlamp): switch to authelia

- Remove OIDC config from helm-values
- Remove ExternalSecret (not needed)
- Add Authelia middleware to ingress
- Headlamp uses ServiceAccount for K8s API access

headlamp/helm-values.yaml

@@ -33,9 +33,3 @@ ingress:
 # Config
 config:
   baseURL: ""
-  oidc:
-    secret:
-      create: false
-    externalSecret:
-      enabled: true
-      name: headlamp-oidc