ci: add --no-deps note for custom PyTorch builds in pre-release notes

Users installing the preview wheel with --force-reinstall in an
environment with a custom PyTorch (e.g. Intel XPU, ROCm) get their
torch replaced with the default CUDA variant from PyPI. Add a note
to the generated release body explaining the workaround.

Closes #1912

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: Titus-von-Koeller

.github/workflows/python-package.yml

@@ -340,6 +340,12 @@ jobs:
           done
 
           cat >> body.md << 'ENDOFMARKDOWN'
+          > **Custom PyTorch builds (Intel XPU, ROCm, etc.):**
+          > The `--force-reinstall` flag causes pip to re-resolve all dependencies from PyPI, which may replace your custom PyTorch build with the default CUDA variant. To avoid this, add `--no-deps`:
+          > ```sh
+          > pip install --force-reinstall --no-deps https://github.com/bitsandbytes-foundation/bitsandbytes/releases/download/continuous-release_main/bitsandbytes-1.33.7.preview-py3-none-manylinux_2_24_x86_64.whl
+          > ```
+
           > **Note:**
           > These wheels are updated automatically with every commit to `main` and become available as soon as the [python-package.yml](.github/workflows/python-package.yml) workflow finishes.