Add GPG key file (#9608)

* Add files via upload

* Update build-all.yml

* Update build-linux.yml

* Update build-osx.yml

* Update build-windows-desktop.yml

* Update build-windows-x86.yml

* Update build-windows.yml

* Update package-zip.yml

* Update build-linux.yml

* Update build-osx.yml

* Update build-windows-x86.yml

* Update package-zip.yml

* Update upload-sign.yml

* Update pub-key.yml

* Update README.md

---------

Co-authored-by: 2dust <31833384+2dust@users.noreply.github.com>

README.md

@@ -16,3 +16,15 @@ Read the [Wiki](https://github.com/2dust/v2rayN/wiki) for details.
 ## Telegram Channel
 
 [github_2dust](https://t.me/github_2dust)
+
+
+## GPG 签名校验 (GPG Verification)
+
+为了预防镜像站、运营商或 CDN 劫持，本项目发布的 Release 文件已使用 GPG 进行签名，以供用户校验文件的真实性与完整性。
+
+To prevent hijacking by mirror sites, ISPs, or CDNs, the Release files of this project are signed with GPG for users to verify their authenticity and integrity.
+
+### 公钥指纹 (Key Fingerprint)
+```text
+76945E9F3E9A168F8070F195805D661C134DFAF68903C199463C31E5AE903AE0
+```