chore: logger and base64 need to be explicitly set as requirements for a warning free experience in ruby 3.4

Author: rarruda

unleash-client.gemspec

@@ -25,6 +25,9 @@ Gem::Specification.new do |spec|
 
   spec.add_dependency "yggdrasil-engine", "~> 0.0.9"
 
+  spec.add_dependency "base64", "~> 0.2.0"
+  spec.add_dependency "logger", "~> 1.6.5"
+
   spec.add_development_dependency "bundler", "~> 2.1"
   spec.add_development_dependency "rake", "~> 12.3"
   spec.add_development_dependency "rspec", "~> 3.12"