add self to dde-maintainer

[fly602]

add self to dde-maintainer

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• 新增团队成员 "fly602" 是否已获得适当的权限和责任确认。
• 是否有相关的文档或权限变更记录来支持这次团队成员的变更。

是否建议立即修改:

• 是，确保团队成员的变更得到适当的审查和记录是重要的，以避免潜在的权限问题或误解。

[github-actions]

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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

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

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• debian/deepin/OWNERS

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