Updated workflow to use Windows 2025

Author: JamesVaughan

.github/workflows/blank.yml

@@ -4,7 +4,7 @@ on: [push, pull_request]
 
 jobs:
   build:
-    runs-on: windows-2019   
+    runs-on: windows-2025
     steps:
     - uses: actions/checkout@v1
     - name: Setup .NetCore