Bump transformers version to most recent

Summary: It cause issues for packages that depend on transformers. I got one with Numpy ABI mismatch which is hard to trace.

Differential Revision: D54900518

Author: Martin Yuan

install_requirements.sh

@@ -39,7 +39,7 @@ pip install --force-reinstall --pre torchaudio=="${TORCH_AUDIO_VERSION}" -i http
 TIMM_VERSION=0.6.13
 pip install --pre timm==${TIMM_VERSION}
 
-TRANSFORMERS_VERSION=4.34.0
+TRANSFORMERS_VERSION=4.38.2
 pip install --force-reinstall --pre transformers==${TRANSFORMERS_VERSION}
 
 TORCHSR_VERSION=1.0.4