Adding ssl_params option for Redis instance

[raysango]

After upgrading Heroku Redis from v5 to v7, TLS is now required which cause redis health check to fail error:
health_check failed: [redis - SSL_connect returned=1 errno=0 state=error: certificate verify failed (self signed certificate in certificate chain)]

Can we add a redis config for ssl ssl_params so we can use { verify_mode: OpenSSL::SSL::VERIFY_NONE }