chore(deps): bump litellm in /examples/example-ai-dspy

Bumps [litellm](https://github.com/BerriAI/litellm) from 1.83.0 to 1.83.7.
- [Release notes](https://github.com/BerriAI/litellm/releases)
- [Commits](https://github.com/BerriAI/litellm/commits)

---
updated-dependencies:
- dependency-name: litellm
  dependency-version: 1.83.7
  dependency-type: direct:production
...

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Author: dependabot[bot]

examples/example-ai-dspy/pyproject.toml

@@ -5,5 +5,5 @@ requires-python = ">=3.10"
 dependencies = [
     "posthog==7.9.12",
     "dspy>=2.5.0",
-    "litellm>=1.50.0",
+    "litellm>=1.83.7",
 ]