[Windows Arm64] Also use Windows 11 for Devicelab tests (#134082)

Currently, the Windows Arm64 tests try to run on Windows 10 devices.
However, [all Windows Arm64 devices use Windows
11](https://chromium-swarm.appspot.com/botlist?c=id&c=task&c=os&c=status&d=asc&f=cpu%3Aarm64&f=os%3AWindows-11&f=pool%3Aluci.flutter.staging&s=id)
which result in the Windows Arm64 tests not running. This updates the
configuration to accept both Windows 10 and 11 (ideally the tests would
run on both OSes).

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.ci.yaml

@@ -203,7 +203,7 @@ platform_properties:
         [
           {"dependency": "certs", "version": "version:9563bb"}
         ]
-      os: Windows-10
+      os: Windows
       device_type: none
       cpu: arm64
   windows_android:
@@ -4996,7 +4996,7 @@ targets:
 
   - name: Windows_arm64 hello_world_win_desktop__compile
     recipe: devicelab/devicelab_drone
-    bringup: true
+    bringup: true # https://github.com/flutter/flutter/issues/134083
     presubmit: false
     timeout: 60
     properties: