fix(deps): update dependency bitsandbytes to ^0.49.0

Author: renovate[bot]

pyproject.toml

@@ -33,7 +33,7 @@ torch = "^2.6.0"
 accelerate = "^1.4.0"
 sentencepiece = "^0.2.0"
 datasets = "^3.3.2"
-bitsandbytes = "^0.45.3"
+bitsandbytes = "^0.49.0"
 evaluate = "^0.4.2"
 safetensors = "^0.5.0"
 google-generativeai = "^0.8.0"