[Codemod][[cqs] Fix CQS signal. Id] 55563409 -- performance-faster-string-find in fbcode/pytorch/audio/src/libtorchaudio/sox

[Codemod][[cqs] Fix CQS signal. Id] 55563409 -- performance-faster-string-find in fbcode/pytorch/audio/src/libtorchaudio/sox #2356