Change DEBUG color to green in coloured logger (#12784)
Change DEBUG color to green in coloured logger (#12784)

In this way it's easier to see difference between debug and error.
apache/airflow,apache/incubator-airflow,lyft/incubator-airflow,nathanielvarona/airflow,danielvdende/incubator-airflow,DinoCow/airflow,airbnb/airflow,apache/airflow,airbnb/airflow,cfei18/incubator-airflow,bolkedebruin/airflow,mistercrunch/airflow,nathanielvarona/airflow,Acehaidrey/incubator-airflow,Acehaidrey/incubator-airflow,dhuang/incubator-airflow,sekikn/incubator-airflow,DinoCow/airflow,apache/airflow,sekikn/incubator-airflow,nathanielvarona/airflow,airbnb/airflow,mistercrunch/airflow,bolkedebruin/airflow,lyft/incubator-airflow,cfei18/incubator-airflow,cfei18/incubator-airflow,sekikn/incubator-airflow,sekikn/incubator-airflow,nathanielvarona/airflow,danielvdende/incubator-airflow,nathanielvarona/airflow,dhuang/incubator-airflow,airbnb/airflow,apache/airflow,danielvdende/incubator-airflow,lyft/incubator-airflow,mistercrunch/airflow,danielvdende/incubator-airflow,bolkedebruin/airflow,nathanielvarona/airflow,bolkedebruin/airflow,Acehaidrey/incubator-airflow,dhuang/incubator-airflow,apache/airflow,DinoCow/airflow,dhuang/incubator-airflow,apache/incubator-airflow,Acehaidrey/incubator-airflow,bolkedebruin/airflow,lyft/incubator-airflow,Acehaidrey/incubator-airflow,cfei18/incubator-airflow,Acehaidrey/incubator-airflow,mistercrunch/airflow,apache/incubator-airflow,DinoCow/airflow,danielvdende/incubator-airflow,danielvdende/incubator-airflow,apache/airflow,apache/incubator-airflow,cfei18/incubator-airflow,cfei18/incubator-airflow