Merge pull request #886 from enechange/renovate/python-dependencies

fix(deps): update dependency litellm to v1.81.15

Author: enechange-renovate[bot]

pyproject.toml

@@ -9,7 +9,7 @@ requires-python = ">=3.14"
 dependencies = [
     "slack-bolt==1.27.0",
     "slack-sdk==3.40.1",
-    "litellm==1.81.14",
+    "litellm==1.81.15",
     "pillow==12.1.1",
     "httpx==0.28.1",
     "bedrock-agentcore==1.3.2",