update airflow config to provide both data_catalog and i2b2 databases
update airflow config to provide both data_catalog and i2b2 databases

LREN-CHUV/dev-setup,LREN-CHUV/mip-microservices-infrastructure,HBPMedical/mip-microservices-infrastructure,HBPMedical/mip-microservices-infrastructure,LREN-CHUV/mip-microservices-infrastructure,LREN-CHUV/dev-setup