Clean up a temporary file

spec/ruby/core/io/path_spec.rb

@@ -3,9 +3,12 @@ require_relative '../../spec_helper'
 describe "IO#path" do
   ruby_version_is "3.2" do
     it "returns the path of the file associated with the IO object" do
-      File.open(tmp("io_path.txt"), "w") do |file|
+      path = tmp("io_path.txt")
+      File.open(path, "w") do |file|
         IO.new(file.fileno, path: file.path, autoclose: false).path.should == file.path
       end
+    ensure
+      File.unlink(path)
     end
   end
 end