Update ci-conan.yml

Updated to Windows runner 2025

Author: THEvang

.github/workflows/ci-conan.yml

@@ -57,7 +57,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [windows-2019]
+        os: [windows-2025]
         build_type: [Debug, Release]
         option_proxyfmu: ['proxyfmu=True', 'proxyfmu=False']