update ruby bindings (#200)

bindings/ruby/regorusrb.gemspec

@@ -20,21 +20,11 @@ Gem::Specification.new do |spec|
   spec.metadata["changelog_uri"] = "#{spec.homepage}/blob/main/bindings/ruby/CHANGELOG.md"
   spec.metadata["rubygems_mfa_required"] = "true"
 
-  # Specify which files should be added to the gem when it is released.
-  # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
-  gemspec = File.basename(__FILE__)
-  spec.files = IO.popen(%w[git ls-files -z], chdir: __dir__, err: IO::NULL) do |ls|
-    ls.readlines("\x0", chomp: true).reject do |f|
-      (f == gemspec) ||
-        f.start_with?(*%w[bin/ test/ spec/ features/ .git .github appveyor Gemfile])
-    end
-  end
-
-  # Ensure Cargo.lock is included
-  spec.files << "../../Cargo.lock" if File.exist?("../../Cargo.lock")
+  spec.files = Dir["lib/*.rb", "lib/regorus/*.rb", "ext/**/*.{rs,rb,lock,toml}", "Cargo.{lock,toml}", "LICENSE.txt", "README.md"]
 
   spec.bindir = "exe"
   spec.executables = spec.files.grep(%r{\Aexe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
-  spec.extensions = ["ext/regorusrb/Cargo.toml"]
+  spec.extensions = ["ext/regorusrb/extconf.rb"]
+  spec.add_dependency "rb_sys", "~> 0.9.91"
 end