Updating gemspec with supported ruby

Author: malikparvez

puppet_forge.gemspec

@@ -18,7 +18,7 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
-  spec.required_ruby_version = '>= 2.6.0'
+  spec.required_ruby_version = '>= 3.1.0'
 
   spec.add_runtime_dependency "faraday", "~> 2.0"
   spec.add_runtime_dependency "faraday-follow_redirects", "~> 0.3.0"