Bump transformers in /genai/jumpstart/text_to_text/flan_t5_xl_with_LoRA

Bumps [transformers](https://github.com/huggingface/transformers) from 4.30.0 to 4.38.0.
- [Release notes](https://github.com/huggingface/transformers/releases)
- [Commits](huggingface/transformers@v4.30.0...v4.38.0)

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

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

Author: dependabot[bot]

genai/jumpstart/text_to_text/flan_t5_xl_with_LoRA/requirements.txt

@@ -1,5 +1,5 @@
 peft==0.2.0
-transformers==4.30.0
+transformers==4.38.0
 accelerate==0.17.1
 bitsandbytes==0.37.1
 datasets