build(deps): update bitsandbytes requirement from ~=0.41.3 to ~=0.42.0

Updates the requirements on [bitsandbytes](https://github.com/TimDettmers/bitsandbytes) to permit the latest version.
- [Release notes](https://github.com/TimDettmers/bitsandbytes/releases)
- [Changelog](https://github.com/TimDettmers/bitsandbytes/blob/main/CHANGELOG.md)
- [Commits](https://github.com/TimDettmers/bitsandbytes/commits/0.42.0)

---
updated-dependencies:
- dependency-name: bitsandbytes
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -1,5 +1,5 @@
 accelerate~=0.20.3
-bitsandbytes~=0.41.3
+bitsandbytes~=0.42.0
 build>=0.10.0
 coverage>=6.4.2
 flake8>=3.7.9