feat(updater): backport changes from tauri v1 (#405)

.changes/updater-nsis.md

@@ -0,0 +1,5 @@
+---
+"updater": patch
+---
+
+Implement passive mode on NSIS and automatically restart after NSIS update.

plugins/updater/src/updater/core.rs

@@ -736,15 +736,11 @@ fn copy_files_and_run<R: Read + Seek>(
         // If it's an `exe` we expect an installer not a runtime.
         if found_path.extension() == Some(OsStr::new("exe")) {
             // Run the EXE
-            let mut installer = Command::new(found_path);
-            if tauri::utils::config::WindowsUpdateInstallMode::Quiet
-                == config.tauri.bundle.updater.windows.install_mode
-            {
-                installer.arg("/S");
-            }
-            installer.args(&updater_config.installer_args);
-
-            installer.spawn().expect("installer failed to start");
+            Command::new(found_path)
+                .args(config.tauri.bundle.updater.windows.install_mode.nsis_args())
+                .args(&updater_config.installer_args)
+                .spawn()
+                .expect("installer failed to start");
 
             exit(0);
         } else if found_path.extension() == Some(OsStr::new("msi")) {