fix: uninitialized constant Gem::RubyGemsVersion

[JDutil]

I ran into an issue with gems pointing to the wrong locations and when blowing away my gems/rubies to to re-install them I began getting errors installing this gemspec:

› bundle update acts_as_commentable
Fetching https://github.com/Huckberry/avatax.git
Fetching https://github.com/JuulLabs-OSS/wanhub_client.git
Fetching https://github.com/alazycoder101/acts_as_commentable.git

[!] There was an error while loading `acts_as_commentable.gemspec`: uninitialized constant Gem::RubyGemsVersion. Bundler cannot continue.

 #  from /Users/jeff.dutil/.gem/ruby/3.3.10/bundler/gems/acts_as_commentable-1fb132ecb44f/acts_as_commentable.gemspec:24
 #  -------------------------------------------
 #
 >      if Gem::Version.new(Gem::RubyGemsVersion) >= Gem::Version.new('1.2.0') then
 #      else
 #  -------------------------------------------