feat: msix auto-updater (#49230)

* feat: native auto updater for MSIX on Windows

* doc: added MSIX debug documentation

* fix: allow downgrade with json release file and emit update-available

* test: msix auot-update tests

* doc: API documentation

* test: add package version validation

* fix: docs typo

* fix: don't allow auto-updating when using appinstaller manifest

* fix: getPackageInfo interface implementation

* fix: review feedback, add comment

* fix: missed filename commit

* fix: install test cert on demand

* fix: time stamp mismatch in tests

* fix: feedback - rename to MSIXPackageInfo

* fix: update and reference windowsStore property

* fix: remove getPackagInfo from public API

* fix: type error bcause of removed API

shell/browser/api/electron_api_msix_updater.h

@@ -0,0 +1,14 @@
+// Copyright (c) 2013 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_MSIX_UPDATER_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_MSIX_UPDATER_H_
+
+namespace electron {
+
+extern const bool debug_msix_updater;
+
+}  // namespace electron
+
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_MSIX_UPDATER_H_