Require redis-client earlier

Fix: #1315

Author: byroot

lib/redis.rb

@@ -1,5 +1,7 @@
 # frozen_string_literal: true
 
+require "redis-client"
+
 require "monitor"
 require "redis/errors"
 require "redis/commands"

lib/redis/client.rb

@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require 'redis-client'
-
 class Redis
   class Client < ::RedisClient
     ERROR_MAPPING = {