Add no_build_extension and no_install_plugin specs to windows_tag_group

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: hsbt

spec/support/windows_tag_group.rb

@@ -187,6 +187,8 @@ module WindowsTagGroup
         "spec/bundler/digest_spec.rb",
         "spec/bundler/fetcher/gem_remote_fetcher_spec.rb",
         "spec/bundler/uri_normalizer_spec.rb",
+        "spec/install/gems/no_build_extension_spec.rb",
+        "spec/install/gems/no_install_plugin_spec.rb",
       ],
     }.freeze
   end