Debug on windows CI

Author: pocke

.github/workflows/windows.yml

@@ -29,7 +29,9 @@ jobs:
             exit if "${{ matrix.ruby }}" != "ucrt" && "${{ matrix.ruby }}" != "mswin"
             bundled_gems = Dir.glob("D:/ruby-${{ matrix.ruby }}/lib/ruby/gems/*/cache/*.gem")
               .map { |path| File.basename(path, ".gem")[/^(.+)-[^-]+$/, 1] }
-            system "gem uninstall #{bundled_gems.join(" ")}", exception: true
+            bundled_gems.each do |gem|
+              system "gem uninstall #{gem}", exception: true
+            end
           '
       - name: bundle install
         run: |