Update tests/templates/kuttl/ldap/60-install-airflow-cluster.yaml.j2

Co-authored-by: Malte Sander <malte.sander.it@gmail.com>

Author: adwk67

tests/templates/kuttl/ldap/60-install-airflow-cluster.yaml.j2

@@ -26,6 +26,7 @@ commands:
       stringData:
         username: airflow
         password: airflow
+{% if test_scenario['values']['executor'] == 'celery' %}
       ---
       apiVersion: v1
       kind: Secret
@@ -34,6 +35,7 @@ commands:
       stringData:
         username: ""
         password: redis
+{% endif %}
       ---
       apiVersion: v1
       kind: Secret