Bump transformers from 4.38.0 to 4.48.0 in /llm_on_ray/pretrain (#284)

Bumps [transformers](https://github.com/huggingface/transformers) from 4.38.0 to 4.48.0.
- [Release notes](https://github.com/huggingface/transformers/releases)
- [Commits](huggingface/transformers@v4.38.0...v4.48.0)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

llm_on_ray/pretrain/requirements.optimum-habana.txt

@@ -2,7 +2,7 @@ accelerate==0.21.0
 datasets==2.12.0
 numpy==1.24.4
 https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-3.0.0.dev0-cp38-cp38-manylinux2014_x86_64.whl
-transformers==4.38.0
+transformers==4.48.0
 typing==3.7.4.3
 tabulate
 ray[tune]

llm_on_ray/pretrain/requirements.txt

@@ -4,7 +4,7 @@ numpy==1.24.4
 https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-3.0.0.dev0-cp38-cp38-manylinux2014_x86_64.whl
 torchvision==0.14.1
 torch==2.2.0
-transformers==4.38.0
+transformers==4.48.0
 typing==3.7.4.3
 tabulate
 ray[tune]