Invoking rubocop fails in 3.8.0-RC3 due to regexp parser error

[jmarrec]

Issue overview

It worked on rc2 according to @joseph-robertson and does fail on rc3.

The path has two roots

Steps to Reproduce

$ Products/openstudio -e "require 'rubocop/rake_task'; require 'stringio'; RuboCop::RakeTask.new(:rubocop) do |t| t.options = ['--autocorrect', '--format', 'simple', '--only', 'Lint/SelfAssignment'] end; Rake.application[:rubocop].invoke"                                                          

terminate called after throwing an instance of 'std::runtime_error'                                            
  what():  Embedded file not found ':/ruby/3.2.0/gems/regexp_parser-2.9.1/lib/regexp_parser/syntax/:/ruby/3.2.0/gems/regexp_parser-2.9.1/lib/regexp_parser/syntax/versions/1.8.6.rb'
Aborted (core dumped) 

Possible Solution

ammar/regexp_parser@v2.9.0...v2.9.1
A bunch of "require" became "require_relative" and that ought to break stuff for us

probably pinning on 2.9.0 is enough

Details

Environment

Some additional details about your environment for this issue (if relevant):

• Platform (Operating system, version): all
• Version of OpenStudio (if using an intermediate build, include SHA): 3.8.0-rc3

Context