Use bitsandbytes 0.40.1.post1 (#357)

setup.cfg

@@ -32,7 +32,7 @@ packages = find:
 python_requires = >=3.7
 install_requires =
     torch>=1.12
-    bitsandbytes==0.40.0.post4
+    bitsandbytes==0.40.1.post1
     accelerate>=0.16.0,<0.21.0
     huggingface-hub>=0.11.1,<1.0.0
     tokenizers>=0.13.3