Fix timm installation (#144)

Summary:
Pull Request resolved: #144

bug fix

Reviewed By: larryliu0820

Differential Revision: D48697288

fbshipit-source-id: 8db7802fc99b5a02adf0d15ecdefa2664cf795d6

Author: guangy10

examples/install_requirements.sh

@@ -24,4 +24,4 @@ TORCH_AUDIO_VERSION=2.1.0.dev20230813
 pip install --force-reinstall --pre torchaudio=="${TORCH_AUDIO_VERSION}" -i https://download.pytorch.org/whl/nightly/cpu
 
 TIMM_VERSION=0.6.13
-pip install --pre timm=${TIMM_VERSION}
+pip install --pre timm==${TIMM_VERSION}