Bump diffusers from 0.31.0 to 0.32.1 in /samples

Bumps [diffusers](https://github.com/huggingface/diffusers) from 0.31.0 to 0.32.1.
- [Release notes](https://github.com/huggingface/diffusers/releases)
- [Commits](huggingface/diffusers@v0.31.0...v0.32.1)

---
updated-dependencies:
- dependency-name: diffusers
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

samples/export-requirements.txt

@@ -6,7 +6,7 @@ optimum-intel @ git+https://github.com/huggingface/optimum-intel.git
 numpy<2.0.0; sys_platform == 'darwin'
 einops==0.8.0  # For Qwen
 transformers_stream_generator==0.0.5  # For Qwen
-diffusers==0.31.0 # For image generation pipelines
+diffusers==0.32.1 # For image generation pipelines
 timm==1.0.12  # For exporting InternVL2
 torchvision  # For visual language models
 transformers>=4.43 # For Whisper