Bump litellm from 1.82.0 to 1.83.0 in the pip group across 1 directory

Bumps the pip group with 1 update in the / directory: [litellm](https://github.com/BerriAI/litellm).


Updates `litellm` from 1.82.0 to 1.83.0
- [Release notes](https://github.com/BerriAI/litellm/releases)
- [Commits](https://github.com/BerriAI/litellm/commits)

---
updated-dependencies:
- dependency-name: litellm
  dependency-version: 1.83.0
  dependency-type: direct:production
  dependency-group: pip
...

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

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
-litellm==1.82.0
+litellm==1.83.0
 # openai-agents  # optional: required for examples/agentic_vectorless_rag_demo.py
 pymupdf==1.26.4
 PyPDF2==3.0.1