Resolve conflict of dependency

Author: ksss

Gemfile

@@ -16,7 +16,7 @@ gem "json-schema"
 gem "goodcheck"
 gem 'digest'
 gem 'tempfile'
-gem "rdoc", "~> 6.11.0"
+gem "rdoc"
 gem "fileutils"
 gem "raap"
 gem "activesupport", "~> 7.0"

Gemfile.lock

@@ -203,7 +203,7 @@ DEPENDENCIES
   rake-compiler
   rbs!
   rbs-amber!
-  rdoc (~> 6.11.0)
+  rdoc
   rspec
   rubocop
   rubocop-on-rbs