Explicitly require base64 gem for Ruby ≥ 3.4

PetrHeinz · PetrHeinz · commit 9b5a85638e80 · 2025-02-11T10:48:00.000+01:00
diff --git a/Gemfile b/Gemfile
@@ -8,3 +8,4 @@ gemspec
 gem "rake", "~> 13.0"
 
 gem "rspec", "~> 3.0"
+gem "base64" if RUBY_VERSION >= "3.4.0"
