build(deps): revive bitsandbytes

Author: kozistr

poetry.lock

@@ -47,6 +47,7 @@ classifiers = [
 python = ">=3.8,<4.0.0"
 numpy = { version = "*", python = ">=3.8" }
 torch = { version = ">=1.10", python = ">=3.8", source = "torch" }
+bitsandbytes = { version = "^0.43", optional = true }
 
 [tool.poetry.dev-dependencies]
 isort = { version = "^5", python = ">=3.8" }
@@ -55,6 +56,9 @@ ruff = "*"
 pytest = "*"
 pytest-cov = "*"
 
+[tool.poetry.extras]
+bitsandbytes = ["bitsandbytes"]
+
 [[tool.poetry.source]]
 name = "torch"
 url = "https://download.pytorch.org/whl/cpu"