fix: repair invalid yaml in issue close workflow

[crazylxr]

问题

合并 PR #2946 时 GitHub 报错:

Invalid workflow file
You have an error in your yaml syntax on line 25 in .github/workflows/issue-close-require.yml

原因

提交 0df187e（经 PR #2941 合入）把 workflow 重写为 actions/github-script@v7 版本，其中两处 body 的中文续行写成了零缩进（顶格）。这导致 YAML 的 script: | 字面量块标量提前结束，后面的 }, 被当作 YAML 结构解析，触发语法错误（line 25）。

修复

将两处多行模板字符串改为单行 JS 字符串 + \n 换行，彻底避免多行 YAML 标量的缩进陷阱：

body: 'Since the issue was labeled with `🤔 Need Reproduce`, but no response in 3 days. This issue will be closed. If you have any questions, you can comment and reply.\n由于该 issue 被标记为需要重现（🤔 Need Reproduce），却 3 天未收到回应。现关闭 issue，若有任何问题，可评论回复。',

已通过 ruby -ryaml 解析校验，YAML OK。

该分支基于最新 origin/master（含 PR #2946 的合并），无冲突。

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[pkg-pr-new]

npm i https://pkg.pr.new/ahooks@2952

npm i https://pkg.pr.new/@ahooks.js/use-url-state@2952

commit: 2652748