Add Windows 2025 to CI

This commit adds Windows 2025 to the Windows JDK matrix pipeline.

Author: dliappis

.buildkite/windows_jdk_matrix_pipeline.yml

@@ -15,6 +15,8 @@ steps:
         multiple: true
         default: "${DEFAULT_MATRIX_OS}"
         options:
+          - label: "Windows 2025"
+            value: "windows-2025"
           - label: "Windows 2022"
             value: "windows-2022"
           - label: "Windows 2019"