Merge pull request #71 from cedarcode/nt--test-against-ruby-3.4

Test against `Ruby 3.4`

Author: nicolastemciuc

.github/workflows/build.yml

@@ -31,6 +31,7 @@ jobs:
       fail-fast: false
       matrix:
         ruby:
+          - 3.4
           - 3.3
           - 3.2
           - 3.1

cose.gemspec

@@ -35,6 +35,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency "openssl-signature_algorithm", "~> 1.0"
 
   spec.add_development_dependency "appraisal", "~> 2.2.0"
+  spec.add_development_dependency "base64", "~> 0.2"
   spec.add_development_dependency "bundler", ">= 1.17", "< 3"
   spec.add_development_dependency "byebug", "~> 11.0"
   spec.add_development_dependency "rake", "~> 13.0"