[lldb][lldb-vscode] Skip disassembler test on Arm

This is failing and/or causing time outs (hard to tell which ) on
our Arm Linux bot:
https://lab.llvm.org/buildbot/#/builders/17/builds/41108

Author: DavidSpickett

lldb/test/API/tools/lldb-vscode/disassemble/TestVSCode_disassemble.py

@@ -14,6 +14,7 @@
 class TestVSCode_disassemble(lldbvscode_testcase.VSCodeTestCaseBase):
     @skipIfWindows
     @skipIfRemote
+    @skipIf(archs=["arm"])
     def test_disassemble(self):
         """
         Tests the 'disassemble' request.