fix: frozen string literal issue for ruby 3.4.0 (#137)

* Fix frozen string literal issue

To prepare for ruby 3.4.0 and making strings frozen by default, we add `+` operator to make the string mutable

* Add empty line for code readability

* Remove extra newline at end of ruby_http_client.rb

* Fix YAML syntax for Ruby version matrix

* Update copyright year in LICENSE file

---------

Co-authored-by: Manisha Singh <[email protected]>
Co-authored-by: Shubham <[email protected]>

Author: 3 people

.github/workflows/test-and-deploy.yml

@@ -17,7 +17,7 @@ jobs:
     timeout-minutes: 20
     strategy:
       matrix:
-        ruby: [ '2.4', '2.5', '2.6', '2.7', '3.0', '3.1', 'jruby-9.2' ]
+        ruby: [ '2.4', '2.5', '2.6', '2.7', '3.0', '3.1' ]
     steps:
       - name: Checkout ruby-http-client
         uses: actions/checkout@v2

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (C) 2023, Twilio SendGrid, Inc. <[email protected]>
+Copyright (C) 2025, Twilio SendGrid, Inc. <[email protected]>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in

lib/ruby_http_client.rb

@@ -184,7 +184,7 @@ def build_args(args)
     #   - The final url string
     #
     def build_url(query_params: nil)
-      url = [add_version(''), *@url_path].join('/')
+      url = [add_version(+''), *@url_path].join('/')
       url = build_query_params(url, query_params) if query_params
       URI.parse("#{@host}#{url}")
     end