text: Title: Make `secure_filename()` escape reserved Windows filenames
  Body: @CaselIT noticed that we didn't hold Windows hand regarding device file names, like
  https://github.com/pallets/werkzeug/blob/7868bef5d978093a8baa0784464ebe5d775ae92a/src/werkzeug/utils.py#L229-L237
  
  (_Originally posted by @CaselIT in https://github.com/falconry/falcon/pull/2421#discussion_r1887617832_.)
              