llvmbot monitor: Move lldb ARM to silent

While https://github.com/llvm/llvm-project/issues/68987 is fixed.

Change-Id: Ic127a7820a91c93796734fff6c3d8da2b22ac4ed
1 file changed
tree: f75f2bb5533dd470f270cc47f4f4bb0ccc90e8d0
  1. bisect/
  2. helpers/
  3. monitor/
  4. release/
  5. stress/
  6. test-suite/
  7. .gitreview
  8. README.txt