chore: bump version to 6.0.30

[fly602]

update changelog to 6.0.30

Summary by Sourcery

Documentation:

• Update the Debian changelog entry to document the 6.0.30 release.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Updates Debian packaging changelog to reflect new release version 6.0.30.

File-Level Changes

Change	Details	Files
Update Debian changelog entry for new 6.0.30 release.	Increment the package version to 6.0.30 in the top changelog stanza. Adjust associated metadata in the changelog entry as needed for the new release (e.g., date, maintainer, or notes).	debian/changelog

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[github-actions]

TAG Bot

TAG: 6.0.30
EXISTED: no
DISTRIBUTION: unstable

[sourcery-ai]

Hey there - I've reviewed your changes and they look great!

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[deepin-ci-robot]

deepin pr auto review

这是一个 debian/changelog 文件的差异内容，我来对其进行审查：

1. 格式规范：

• changelog 格式符合 Debian 标准，包含了版本号、发行版本、紧急程度、变更条目和维护者信息
• 日期格式正确，使用 RFC 2822 格式
• 变更条目前使用了正确的缩进（两个空格）

2. 内容质量：

• 两条变更记录都有明确的分类标识（fix:）
• 变更描述简洁明了，清楚地说明了修改内容
• 第一条修复描述了具体问题（dde-open识别不了空文件）
• 第二条修复提到了线程安全的改进（add thread safety to brightness calculation）

3. 改进建议：

• 版本号 6.0.30 的日期显示为 2025 年 11 月 27 日，这看起来是一个未来的日期，建议修正为当前日期
• 可以考虑在第二条修复中提供更多细节，比如说明为什么需要增加线程安全，或者具体的实现方式

4. 安全性：

• 从 changelog 来看，没有发现直接的安全问题
• 第二条修复提到了线程安全，这是一个好的安全实践

总体来说，这个 changelog 条目格式规范，内容清晰，只需要修正日期问题即可。建议将日期改为当前实际日期，以避免混淆。

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: fly602, yixinshark

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• debian/deepin/OWNERS

Approvers can indicate their approval by writing /approve in a comment
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