fix(stellar-artalk): bump version, fix site name escape

[songtianlun]

修复以下问题：
1、低版本的 artalk js 无法对接高版本的 artalk 后端，升级配置文件中的版本；
2、模板中向 artalk 传递 site 名称使用了 <%= 转义会导致 artalk 无法对应站点，改用 <%- 解决。

例如我的博客名叫 Frytea's Blog ，但是在 artalk 看到请求的是类似 Frytea's Blog 导致 artalk 无法找到对应名字的站点，最终得到 404 错误。

Error: 未找到站点：`Frytea's Blog`，请在控制台创建站点

• references: ejs docs: https://ejs.co/#install

---

Fix the following issues:

1. Older versions of artalk js cannot connect to newer versions of artalk backend, upgrade the version in the configuration file;
2. Passing the site name to artalk in templates using <%= for escaping will cause artalk to not recognize the site correctly, use <%- instead.

For example, if my blog is named 'Frytea's Blog', but in artalk I see requests like 'Frytea's Blog', which causes artalk to be unable to find the corresponding site name, resulting in a 404 error.

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[xaoxuu]

感谢大佬🫶