Add racc as explicit dependency for Ruby 3.3+ compatibility #33
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Problem
Starting from Ruby 3.3.0, the racc/parser is no longer included in the default gems. This causes test failures when running the test suite with Ruby 3.3 or newer.
Error message:
Solution
Added racc as an explicit dependency in the gemspec file. This ensures compatibility with Ruby 3.3+ while maintaining functionality with older Ruby versions.
Testing
All tests are passing after adding the dependency.