Be able to pass TLS options to predis and phpredis

[tarjei]

Hi, it is now needed for this bundle to support passing tls options like verify_peer and ca_file to the client libraries.

For PHPRedis the options are documented here: https://github.com/phpredis/phpredis/issues/1600#issuecomment-673362758

And for predis: https://github.com/predis/predis