fix: issue where the issue template does not display the bug report category

[Hiraeth-Wave]

紧急修复了 Bug report 模板消失的问题。

GitHub 这官方文档坑我。。

Screenshots or Test Results / 运行截图或测试结果

修复前

修复后(Test)

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Checklist / 检查清单

• 😊 If there are new features added in the PR, I have discussed it with the authors through issues/emails, etc.
  / 如果 PR 中有新加入的功能，已经通过 Issue / 邮件等方式和作者讨论过。

• 👀 My changes have been well-tested, and "Verification Steps" and "Screenshots" have been provided above.
  / 我的更改经过了良好的测试，并已在上方提供了“验证步骤”和“运行截图”。

• 🤓 I have ensured that no new dependencies are introduced, OR if new dependencies are introduced, they have been added to the appropriate locations in requirements.txt and pyproject.toml.
  / 我确保没有引入新依赖库，或者引入了新依赖库的同时将其添加到 requirements.txt 和 pyproject.toml 文件相应位置。

• 😮 My changes do not introduce malicious code.
  / 我的更改没有引入恶意代码。

Summary by Sourcery

Restore proper display and functionality of the GitHub bug report issue templates by correcting their file upload validation configuration.

Bug Fixes:

• Fix bug report issue templates so the bug report category appears correctly in GitHub.
• Adjust file upload validation in bug report templates to use a supported list of accepted file extensions.

[dosubot]

📄 Knowledge review

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[sourcery-ai]

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