style: format utils.py with ruff

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: andrewm4894

posthog/ai/utils.py

@@ -285,7 +285,9 @@ def call_llm_and_track_usage(
 
         event_properties = {
             "$ai_provider": provider,
-            "$ai_model": kwargs.get("model") or getattr(response, "model", None) or "unknown",
+            "$ai_model": kwargs.get("model")
+            or getattr(response, "model", None)
+            or "unknown",
             "$ai_model_parameters": get_model_params(kwargs),
             "$ai_input": with_privacy_mode(
                 ph_client, posthog_privacy_mode, sanitized_messages
@@ -396,7 +398,9 @@ async def call_llm_and_track_usage_async(
 
         event_properties = {
             "$ai_provider": provider,
-            "$ai_model": kwargs.get("model") or getattr(response, "model", None) or "unknown",
+            "$ai_model": kwargs.get("model")
+            or getattr(response, "model", None)
+            or "unknown",
             "$ai_model_parameters": get_model_params(kwargs),
             "$ai_input": with_privacy_mode(
                 ph_client, posthog_privacy_mode, sanitized_messages