Bump windows to latests as GH will remove windows-2019 EOM (#51798)

Summary:
As per title, GH is [removing windows-2019](https://github.com/facebook/react-native/actions/runs/15421451006/job/43403215354) at the end of the month. We need to migrate away from them.

## Changelog:
[Internal] - Bump windows runners

Pull Request resolved: https://github.com/facebook/react-native/pull/51798

Test Plan: GHA

Reviewed By: cortinico

Differential Revision: D75946994

Pulled By: cipolleschi

fbshipit-source-id: 972b60300c918c0eae0403ed4149347a4ffa8bd0