Update dependency litellm to v1.90.0

Author: renovate[bot]

pyproject.toml

@@ -21,7 +21,7 @@ dependencies = [
     "numpy>=1.24",
     "pandas>=2.0",
     "pyyaml>=6.0",
-    "litellm==1.81.13",
+    "litellm==1.90.0",
     "openai>=1.40.0",
     "claude-agent-sdk>=0.0.14",
     "openai-agents>=0.0.7",