Bump transformers from 4.36.0 to 4.38.0 in /examples/research_projects/realfill (#7635)

Bump transformers in /examples/research_projects/realfill

Bumps [transformers](https://github.com/huggingface/transformers) from 4.36.0 to 4.38.0.
- [Release notes](https://github.com/huggingface/transformers/releases)
- [Commits](https://github.com/huggingface/transformers/compare/v4.36.0...v4.38.0

)

---
updated-dependencies:
- dependency-name: transformers
  dependency-type: direct:production
...
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examples/research_projects/realfill/requirements.txt

 diffusers==0.20.1
 accelerate==0.23.0
-transformers==4.36.0
+transformers==4.38.0
 peft==0.5.0
 torch==2.0.1
 torchvision>=0.16