chore: disable restrictive systemd security options

[wineee]

Disabled several restrictive systemd security options in Treeland service to resolve stability issues:

1. Commented out MemoryDenyWriteExecute=true due to crashes observed on arm64 VMs in libgallium.so during output enabling
2. Commented out PrivateIPC=true due to mount namespace setup failures with /dev/mqueue permission errors
3. Commented out ProtectSystem=full due to X11 socket ownership issues with /tmp/.X11-unix

These changes are necessary to maintain system stability while investigating the root causes of these security feature conflicts.

禁用了 Treeland 服务中的几个限制性 systemd 安全选项以解决稳定性问题：

1. 注释掉 MemoryDenyWriteExecute=true，因为在 arm64 虚拟机上观察到在输出 启用期间 libgallium.so 中发生崩溃
2. 注释掉 PrivateIPC=true，因为 /dev/mqueue 权限错误导致挂载命名空间设置 失败
3. 注释掉 ProtectSystem=full，因为 /tmp/.X11-unix 的 X11 套接字所有权 问题

Summary by Sourcery

Enhancements:

• Disable several restrictive systemd security options in the Treeland systemd service unit to improve runtime stability while underlying compatibility issues are investigated.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

This PR relaxes several systemd hardening options in the Treeland service unit by commenting out specific directives that have been causing runtime and namespace issues on certain environments, particularly arm64 VMs and X11 setups.

File-Level Changes

Change	Details	Files
Relax systemd security hardening for the Treeland service unit to avoid crashes and namespace setup failures.	Commented out MemoryDenyWriteExecute=true to prevent crashes in libgallium.so on arm64 during output enablement Commented out PrivateIPC=true to avoid mount namespace setup failures related to /dev/mqueue permissions Commented out ProtectSystem=full to work around X11 socket ownership problems for /tmp/.X11-unix	misc/systemd/dde-session-pre.target.wants/treeland.service.in

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: wineee, zccrs

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