build(deps): bump litellm from 1.60.2 to 1.61.15 (#5)

Bumps [litellm](https://github.com/BerriAI/litellm) from 1.60.2 to 1.61.15.
- [Release notes](https://github.com/BerriAI/litellm/releases)
- [Commits](https://github.com/BerriAI/litellm/commits)

---
updated-dependencies:
- dependency-name: litellm
  dependency-version: 1.61.15
  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]

poetry.lock

@@ -14,7 +14,7 @@ ecologits = "^0.5.2"
 fastapi = "^0.115.8"
 huggingface-hub = "^0.29.1"
 langdetect = "^1.0.9"
-litellm = "^1.60.2"
+litellm = "^1.61.15"
 mistralai = "^1.2.2"
 openai = "^1.60.2"
 psycopg2-binary = "^2.9.10"