fix(platform): authMode forward-auth for public-frankfurt tier (#13)

Author: jorisjonkers-dev-agents[bot]

platform/deployment.yml

@@ -26,7 +26,7 @@ spec:
       routes:
         - host: kb.jorisjonkers.dev
           owner: knowledge-api
-          authMode: sso
+          authMode: forward-auth
           expose:
             tier: public-frankfurt
           rules:
@@ -69,4 +69,4 @@ spec:
         strategy: none
       rollbackTargetRetention:
         minimumDays: 90
-        acknowledged: true
+        acknowledged: true