update cert for maint url

maintenance/values/overlays/maintenance/hosts.yaml

-ingress:
-  hosts:
-    - host: zam12185.zam.kfa-juelich.de
-      secretName: zam12185

maintenance/values/overlays/production-prep/hosts.yaml

-ingress:
-  hosts:
-    - host: zam12154.zam.kfa-juelich.de
-      secretName: zam12154

maintenance/values/overlays/production/hosts.yaml

@@ -14,3 +14,5 @@ ingress:
       secretName: portalgauss-tls
     - host: jupyter-coec.jsc.fz-juelich.de
       secretName: coec-tls
+    - host: zam12154.zam.kfa-juelich.de
+      secretName: zam12154-tls