fix: windows compilation for multi window plugin

flutter/pubspec.lock

@@ -222,8 +222,8 @@ packages:
     dependency: "direct main"
     description:
       path: "."
-      ref: master
-      resolved-ref: "7150283dcd0c79450b98bf0a62b26df95897e53c"
+      ref: "3966c7f1ed85f06861e66088bfa4c921ddaae4c5"
+      resolved-ref: "3966c7f1ed85f06861e66088bfa4c921ddaae4c5"
       url: "https://github.com/Kingtous/rustdesk_desktop_multi_window"
     source: git
     version: "0.0.1"

flutter/pubspec.yaml

@@ -62,7 +62,7 @@ dependencies:
     desktop_multi_window:
         git:
             url: https://github.com/Kingtous/rustdesk_desktop_multi_window
-            ref: master
+            ref: 3966c7f1ed85f06861e66088bfa4c921ddaae4c5
     bitsdojo_window: ^0.1.2
     freezed_annotation: ^2.0.3