Use airflow 2.2.3 for the CI/CD tests

.gitlab-ci.yml

@@ -12,8 +12,8 @@ variables:
   TESTING_NAME: airflow-testing
   TESTING_URL: http://134.94.199.220:7001/home
   AIRFLOW_TESTUSER: "airflow"
-  AIRFLOW__SECRETS__BACKEND_KWARGS: '{"url" : "https://zam10036.zam.kfa-juelich.de", "user" : "${DATACAT_TESTING_USERNAME}", "password" : "${DATACAT_TESTING_PASSWORD}"}'
-  AIRFLOW__SECRETS__BACKEND: datacat_integration.secrets.DatacatSecretsBackend
+  # AIRFLOW__SECRETS__BACKEND_KWARGS: '{"url" : "https://zam10036.zam.kfa-juelich.de", "user" : "${DATACAT_TESTING_USERNAME}", "password" : "${DATACAT_TESTING_PASSWORD}"}'
+  # AIRFLOW__SECRETS__BACKEND: datacat_integration.secrets.DatacatSecretsBackend
   DOCKER_TLS_CERTDIR: ""
 
 
@@ -37,7 +37,8 @@ stages:
 test:
   stage: test
   image: 
-    name: registry.jsc.fz-juelich.de/eflows4hpc-wp2/data-logistics-service/eflows-airflow
+    name: apache/airflow:2.2.3
+    # name: registry.jsc.fz-juelich.de/eflows4hpc-wp2/data-logistics-service/eflows-airflow
     entrypoint: [""]
   before_script:
     - echo "DEBUG:"