fix(test): issues file contain invalid character

[fireairforce]

修复一下 turbopack-tests-utils 里面的快照测试文件名处理逻辑，里面有些不合法的字符串会导致 utoo 的 windows ci 挂掉:

https://github.com/utooland/utoo/actions/runs/21235370817/job/61102068999

[gemini-code-assist]

Summary of Changes

Hello @fireairforce, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

此拉取请求旨在解决 turbopack-test-utils 中快照测试文件名生成逻辑存在的问题，该问题会导致在 Windows CI 环境下因文件名包含非法字符而失败。通过引入更通用的正则表达式进行文件名清理，并简化样式字符串到文件安全字符串的转换，提高了文件命名兼容性和代码可维护性。

Highlights

• 文件名清理逻辑重构: 重构了 snapshot_issues 函数中用于生成快照文件名的逻辑，使其能够更健壮地处理各种无效字符，特别是针对 Windows 文件系统。
• 引入正则表达式进行文件名验证: 新增了 INVALID_FILENAME_CHARS 和 MULTI_SPACE_DASH 两个正则表达式，用于识别和替换文件名中不允许的字符以及规范化空格和连字符。
• 简化 styled_string_to_file_safe_string 函数: 简化了 styled_string_to_file_safe_string 函数的实现，移除了之前为 Line、Stack、Code 和 Strong 类型添加的特殊前缀和后缀，使转换后的字符串更简洁。

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[gemini-code-assist]

Code Review

你好，这个 PR 很好地解决了在 Windows 上因非法文件名字符导致的 CI 失败问题。通过使用正则表达式来清理和规范化文件名，代码变得更加健壮和简洁。特别是 styled_string_to_file_safe_string 函数的重构，大大简化了逻辑，并生成了更清晰的文件名。

我有一个小建议，可以使文件名清理逻辑更加完善，具体请看我的评论。