refactor(platform): remove Dex

Use Authentik instead

platform/dex/Chart.yaml

@@ -1,7 +0,0 @@
-apiVersion: v2
-name: dex
-version: 0.0.0
-dependencies:
-- name: dex
-  version: 0.6.3
-  repository: https://charts.dexidp.io

platform/dex/values.yaml

@@ -1,30 +0,0 @@
-dex:
-  ingress:
-    enabled: true
-    className: nginx
-    annotations:
-      cert-manager.io/cluster-issuer: "selfsigned-cluster-issuer"
-    hosts:
-    - host: dex.khuedoan.com
-      paths:
-      - path: /
-        pathType: ImplementationSpecific
-    tls:
-    - secretName: dex-tls-certificate
-      hosts:
-        - dex.khuedoan.com
-  config:
-    issuer: https://dex.khuedoan.com
-    storage:
-      type: kubernetes
-      config:
-        inCluster: true
-    connectors:
-    - type: gitea
-      id: gitea
-      name: Gitea
-      config:
-        clientID: $GITEA_CLIENT_ID
-        clientSecret: $GITEA_CLIENT_SECRET
-        redirectURI: https://dex.khuedoan.com/callback
-        baseURL: https://git.khuedoan.com