[lldb] Skip TestSymbolFileJSON on Windows

Disable the test as Windows (or at least the bot) doesn't have 'strip':

  'strip' is not recognized as an internal or external command

(cherry picked from commit 7c4e6c9)

Author: JDevlieghere

lldb/test/API/macosx/symbols/TestSymbolFileJSON.py

@@ -12,6 +12,7 @@ def setUp(self):
         self.source = 'main.c'
 
     @no_debug_info_test
+    @skipIfWindows # No 'strip'
     def test_symbol_file_json_address(self):
         """Test that 'target symbols add' can load the symbols from a JSON file using file addresses."""