fix: follow the library changes we depend on (#430)

Author: supercaracal

lib/redis_client/cluster/node.rb

@@ -91,9 +91,7 @@ def initialize(scale_read: false, **kwargs)
           super(**kwargs)
         end
 
-        private
-
-        def build_connection_prelude
+        def connection_prelude
           prelude = super.dup
           prelude << ['readonly'] if @scale_read
           prelude.freeze

redis-cluster-client.gemspec

@@ -13,5 +13,5 @@ Gem::Specification.new do |s|
   s.metadata['allowed_push_host']     = 'https://rubygems.org'
   s.files                             = Dir['lib/**/*.rb']
 
-  s.add_runtime_dependency 'redis-client', '~> 0.22'
+  s.add_runtime_dependency 'redis-client', '~> 0.24'
 end