The #11526 was badly rebased just before beta1 relase and few
lines installing the providers were lost.


setup.py
"apache.webhdfs": ["apache.hdfs"],
    'async': [],
    'atlas': [],  
    'aws': ["amazon"],  
    'azure': ["microsoft.azure"],  
    'cassandra': ["apache.cassandra"],  
    'celery': ["celery"],
    'cgroups': [],
    'cloudant': ["cloudant"],
    'cncf.kubernetes': ["cncf.kubernetes"],
    'dask': ["dask"],
    'databricks': ["databricks"],
    'datadog': ["datadog"],
    'devel': ["cncf.kubernetes", "mysql"],
    'devel_hadoop': ["apache.hdfs", "apache.hive", "presto"],
    'doc': [],
    'docker': ["docker"],
    'druid': ["apache.druid"],  
    'elasticsearch': ["elasticsearch"],
    'exasol': ["exasol"],
    'facebook': ["facebook"],
    'gcp': ["google"],  
    'gcp_api': ["google"],  
    'github_enterprise': [],
    'google': ["google"],
    'google_auth': [],
    'grpc': ["grpc"],
    'hashicorp': ["hashicorp"],
    'hdfs': ["apache.hdfs"],  
    'hive': ["apache.hive"],