SORT_RO support

[amree]

May I know if we can run something like redis.sort_ro on the replicas? It doesn't seem to be supported based on the code

redis-rb/lib/redis/commands/keys.rb

Line 389 in 2b183ad

def sort(key, by: nil, limit: nil, get: nil, order: nil, store: nil)

Related issue: #525

[byroot]

Duplicate of #1187

PRs to support for Redis 7.0 commands are welcome. In the meantime you can issue any arbitrary comands with .call.