add @skipIfWindows to unresolved disassemble test on windows (llvm#140852)

Fix https://lab.llvm.org/buildbot/#/builders/141/builds/8867

Author: eronnen

lldb/test/API/tools/lldb-dap/disassemble/TestDAP_disassemble.py

@@ -33,6 +33,7 @@ def test_disassemble(self):
         self.assertNotIn("location", qsort_assembly, "Source location not expected.")
         self.assertIn("instruction", pc_assembly, "Assembly instruction missing.")
 
+    @skipIfWindows
     def test_disassemble_backwards(self):
         """
         Tests the 'disassemble' request with a backwards disassembly range.