shadowsocks-rust: add package

[JoveYu]

add luci-app-shadowsocks-rust for package shadowsocks-rust openwrt/packages#28355

[github-actions]

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Commit 8e1007f

• ❌ Signed-off-by is missing or doesn't match author (should be Signed-off-by: Jove Yu <yushijun110@126.com>)
• ❌ Commit message is missing. Please describe your changes.

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