Use :read_timeout instead of :timeout for read timeout

Author: WJWH

lib/redis/connection/ruby.rb

@@ -314,7 +314,7 @@ def self.connect(config)
         end
 
         instance = new(sock)
-        instance.timeout = config[:timeout]
+        instance.timeout = config[:read_timeout]
         instance.write_timeout = config[:write_timeout]
         instance.set_tcp_keepalive config[:tcp_keepalive]
         instance