Update channels redis config to have SSL options

[sambles]

Issue Description

To get SSL working the following changes to Django's setting.py are needed

• Add a chanel_ssl option which switches the protoco from redis to rediss
• Fix the helm chart so channel_layer_port is correctly set, currently its defaulting to 6379
• Add Ignore CERTIFICATE_VERIFY option which sets check_hostname = False

CHANNEL_LAYER_SSL=True
CHANNEL_LAYER_PROTO='redis'+'s'*CHANNEL_LAYER_SSL                                                                                                                                                                                                            

import ssl
ssl_context = ssl.SSLContext()
ssl_context.check_hostname = False


CHANNEL_LAYERS = {
    'default': {
        'BACKEND': 'channels_redis.core.RedisChannelLayer',
        'CONFIG': {
            'hosts': [{
                'address': f'{CHANNEL_LAYER_PROTO}://{CHANNEL_LAYER_USER}:{CHANNEL_LAYER_PASS}@{CHANNEL_LAYER_HOST}:{CHANNEL_LAYER_PORT}/0',
                'ssl': ssl_context
            }],
            'symmetric_encryption_keys': [SECRET_KEY],
            "capacity": 1500,
        },
    },
}

• Add option to pass in certs Feature request: configure SSL settings in CHANNEL_LAYERS django/channels_redis#235 (comment)

Example data / logs