Merge pull request #2601 from ima1zumi/add-tsort-dep

Add explicit dependency on the tsort gem

Author: soutaro

Gemfile.lock

@@ -3,6 +3,7 @@ PATH
   specs:
     rbs (3.10.2)
       logger
+      tsort
 
 PATH
   remote: test/assets/test-gem

rbs.gemspec

@@ -46,4 +46,5 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
   spec.required_ruby_version = ">= 3.1"
   spec.add_dependency "logger"
+  spec.add_dependency "tsort"
 end