ci: 修复 Runner 无 sudo 问题

- 移除所有 sudo 命令（容器以 root 运行）
- apt-get 不需要 sudo

.gitea/workflows/build.yml

@@ -28,12 +28,12 @@ jobs:
         
     - name: Install MinGW
       run: |
-        sudo apt-get update
-        sudo apt-get install -y mingw-w64 x86_64-w64-mingw32-posix-runtime libssl-dev pkg-config
+        apt-get update
+        apt-get install -y mingw-w64 x86_64-w64-mingw32-posix-runtime libssl-dev pkg-config
         
     - name: Install GTK dependencies
       run: |
-        sudo apt-get install -y libgtk-3-dev libwebkit2gtk-4.0-dev libappindicator3-dev librsvg2-dev libjavascriptcoregtk-4.0-dev libsoup2.4-dev
+        apt-get install -y libgtk-3-dev libwebkit2gtk-4.0-dev libappindicator3-dev librsvg2-dev libjavascriptcoregtk-4.0-dev libsoup2.4-dev
         
     - name: Build
       run: |