test only on windows

Author: arun3688

.github/workflows/FMITest.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         python-version: ['3.12']
-        os: ['ubuntu-latest', 'windows-latest']
+        os: ['windows-latest']
         omc-version: ['stable', 'nightly']
 
     steps: