Update End of Support dates: 0.81 to 03/20/2026, 0.80 to 01/29/2026

Co-authored-by: vineethkuttan <66076509+vineethkuttan@users.noreply.github.com>

Author: Copilot

website/pages/en/support.js

@@ -14,8 +14,8 @@ The React Native for Windows (RNW) Team strives to provide full support for the
 | Version | Support Phase | Release Date | Active Support Start | Maintenance Support Start | End of Support |
 | -- | -- | -- | -- | -- | -- |
 | [main](https://www.npmjs.com/package/react-native-windows/v/canary) | [Canary](#canary-support) | *N/A* | *N/A* | *N/A* | *N/A* |
-| [0.81](https://www.npmjs.com/package/react-native-windows/v/latest) | [Active](#active-support) | 12/19/2025 | 12/19/2025 | 01/20/2026 | 02/20/2026 |
-| [0.80](https://www.npmjs.com/package/react-native-windows/v/v0.80-stable) | [Active](#active-support) | 10/28/2025 | 10/28/2025 | 11/29/2025 | 12/29/2025 |
+| [0.81](https://www.npmjs.com/package/react-native-windows/v/latest) | [Active](#active-support) | 12/19/2025 | 12/19/2025 | 01/20/2026 | 03/20/2026 |
+| [0.80](https://www.npmjs.com/package/react-native-windows/v/v0.80-stable) | [Active](#active-support) | 10/28/2025 | 10/28/2025 | 11/29/2025 | 01/29/2026 |
 | [0.79](https://www.npmjs.com/package/react-native-windows/v/v0.79-stable) | [Active](#active-support) | 06/17/2025 | 06/17/2025 | 11/30/2025 | 01/31/2026 |
 | [0.78](https://www.npmjs.com/package/react-native-windows/v/v0.78-stable) | [Unsupported](#unsupported) | 02/27/2025 | 02/27/2025 | 07/31/2025 | 09/30/2025 |
 | [0.77](https://www.npmjs.com/package/react-native-windows/v/v0.77-stable) | [Unsupported](#unsupported) | 01/24/2025 | 01/24/2025 | 03/30/2025 | 05/31/2025 |