Update Windows badges in README.md [skip ci]

Part of gazebo-tooling/release-tools#1288

Signed-off-by: Jose Luis Rivero <[email protected]>

Author: j-rivero

README.md

@@ -11,7 +11,7 @@ Build | Status
 -- | --
 Ubuntu Noble  | [![Build Status](https://build.osrfoundation.org/buildStatus/icon?job=gz_cmake-ci-gz-cmake4-noble-amd64)](https://build.osrfoundation.org/job/gz_cmake-ci-gz-cmake4-noble-amd64)
 Homebrew      | [![Build Status](https://build.osrfoundation.org/buildStatus/icon?job=gz_cmake-ci-gz-cmake4-homebrew-amd64)](https://build.osrfoundation.org/job/gz_cmake-ci-gz-cmake4-homebrew-amd64)
-Windows       | [![Build Status](https://build.osrfoundation.org/buildStatus/icon?job=gz_cmake-4-win)](https://build.osrfoundation.org/job/gz_cmake-4-win)
+Windows       | [![Build Status](https://build.osrfoundation.org/buildStatus/icon?job=gz_cmake-4-clowin)](https://build.osrfoundation.org/job/gz_cmake-4-clowin)
 
 # Table of Contents