In the Edge browser, the character `{docsify-updated}` is not replaced

### Description

[https://yequanrui.github.io/CloudNotes/#/_index](https://yequanrui.github.io/CloudNotes/#/_index)

It displays correctly in the Chrome browser, with `{docsify-updated}` being replaced by the value of `last-modified`.

It is displayed incorrectly in the Edge browser. The `last-modified` has a value, but `{docsify-updated}` is not replaced.

### Expected behavior

Replace with the value of `last-modified`.

### Actual behavior

`{docsify-updated}` has not been replaced.

### Steps to reproduce

1. Check whether the value after `Last update time: ` is correct in the Chrome browser
2. Check whether the value after `Last update time: ` is correct in the Edge browser

### Environment

- Your OS: Windows 11 25H2
- Node.js version: 20.20.0
- npm/yarn version: 10.9.4
- Browser version: Edge 145.0.3800.70 / Chrome 145.0.7632.110
- Docsify version: 4.13.1
- Docsify plugins (if the bug happens when plugins enabled, please try to isolate the issue): docsify-updated 1.0.5

### Additional Information

- [x] Bug still occurs when all/other plugins are disabled?

Start by reproducing the linked CloudNotes page in Edge and Chrome with Docsify 4.13.1 and the docsify-updated 1.0.5 plugin, using the listed Windows and Node.js environment as a reference. Trace how `{docsify-updated}` is processed and compare the browser behavior; done means the value after `Last update time:` is replaced with `last-modified` in Edge as well as Chrome.

Written by the indexing model from the issue text.