Re-enable pry-byebug on Ruby 3.2 once supported

[timrogers]

spec/helper.rb currently doesn't require pry-byebug on Ruby 3.2.0 due to an apparent incompatability.

We should check if pry-byebug still has this problem and remove it when it doesn't

Originally posted by @timrogers in #1432 (comment)

[github-actions]

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