When "production" image is prepared for, only amazon and google providers are installed from sources.

**Apache Airflow version**:

master

**What you expected to happen**:

All providers should be installed

**How to reproduce it**:

```
./breeze --production-image --python 3.6
```

Then:

```
./breeze --production-image --python 3.6 shell bash
```

then

```
ls -la ~/.local/lib/python3.6/site-packages/airflow/providers/

amazon
google

```


UPDATE:

They are not even installed: 

```
.
./amazon
./amazon/aws
./amazon/aws/hooks
./amazon/aws/hooks/batch_waiters.json
./google
./google/cloud
./google/cloud/example_dags
./google/cloud/example_dags/example_bigquery_query.sql
./google/cloud/example_dags/example_cloud_build.yaml
./google/cloud/example_dags/example_spanner.sql
```

setup.py
'Environment :: Console',
            'Environment :: Web Environment',
            'Intended Audience :: Developers',
            'Intended Audience :: System Administrators',
            'License :: OSI Approved :: Apache Software License',
            'Programming Language :: Python :: 3.6',
            'Programming Language :: Python :: 3.7',
            'Programming Language :: Python :: 3.8',
            'Topic :: System :: Monitoring',
        ],
        author='Apache Software Foundation',
        author_email='dev@airflow.apache.org',
        url='http://airflow.apache.org/',
        download_url=('https://archive.apache.org/dist/airflow/' + version),
        cmdclass={
            'extra_clean': CleanCommand,
            'compile_assets': CompileAssets,
            'list_extras': ListExtras,
        },
        test_suite='setup.airflow_test_suite',
        python_requires='~=3.6',
        project_urls={
            'Documentation': 'https://airflow.apache.org/docs/',
            'Bug Tracker': 'https://github.com/apache/airflow/issues',
            'Source Code': 'https://github.com/apache/airflow',
        },
    )
if __name__ == "__main__":
    do_setup()