Bump diffusers

Bumps [diffusers](https://github.com/huggingface/diffusers) from 0.17.1 to 0.38.0.
- [Release notes](https://github.com/huggingface/diffusers/releases)
- [Commits](huggingface/diffusers@v0.17.1...v0.38.0)

---
updated-dependencies:
- dependency-name: diffusers
  dependency-version: 0.38.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

doc/source/templates/testing/docker/03_serving_stable_diffusion/requirements.txt

@@ -1,5 +1,5 @@
 accelerate==0.20.3
-diffusers==0.17.1
+diffusers==0.38.0
 fastapi==0.97.0
 ipywidgets
 matplotlib==3.7.1