No native extensions built for Ruby 3.4

[andrewmarkle]

Hey there. We just updated our application to use Ruby 3.4 and we noticed that this gem no longer compiles / builds native extensions. We're on 1.1.2.rc1.

To reproduce you can install Ruby 3.4 and then run:

gem install bcrypt_pbkdf --platform=arm64-darwin

This will fail to compile. We're seeing the same problem as this comment made here: #25 (comment)