Update requirements.txt

requirements.txt

@@ -110,7 +110,7 @@ toml==0.10.2
 toolz==0.12.0
 torch==1.13.1
 torchaudio==0.13.1
-torchdiffeq==0.2.3
+torchdiffeq==0.2.3 ; python_version >= "3.8" and python_version < "3.12" and python_full_version != "3.9.7"
 torchlibrosa==0.0.
 torchsde==0.2.5
 torchvision==0.14.1