[LLDB] SkipIf TestPythonOSPlugin.py on Windows

test_run_python_os_step in TestPythonOSPlugin.py fails on Windows
after PR #97043. The test passes when run individually using dotest.py.

I have marked this skipped for windows to make LLDB AArch64 Windows
buildbot happy.

a4c1813
https://lab.llvm.org/buildbot/#/builders/141/builds/379

Author: omjavaid

lldb/test/API/functionalities/plugins/python_os_plugin/TestPythonOSPlugin.py

@@ -17,6 +17,7 @@ def test_python_os_plugin(self):
         self.build()
         self.run_python_os_funcionality()
 
+    @skipIfWindows  # This is flaky on Windows
     def test_run_python_os_step(self):
         """Test that the Python operating system plugin works correctly when single stepping a virtual thread"""
         self.build()