Fix precommit check after moving to ruff (#927)

Lint check in main branch is failing. This fixes the lint check after we
moved to ruff in https://github.com/meta-llama/llama-stack/pull/921. We
need to move to a `ruff.toml` file as well as fixing and ignoring some
additional checks.

Signed-off-by: Yuan Tang <terrytangyuan@gmail.com>

llama_stack/providers/utils/telemetry/sqlite_trace_store.py

@@ -118,10 +118,7 @@ class SQLiteTraceStore(TraceStore):
         # Build the attributes selection
         attributes_select = "s.attributes"
         if attributes_to_return:
-            json_object = ", ".join(
-                f"'{key}', json_extract(s.attributes, '$.{key}')"
-                for key in attributes_to_return
-            )
+            json_object = ", ".join(f"'{key}', json_extract(s.attributes, '$.{key}')" for key in attributes_to_return)
             attributes_select = f"json_object({json_object})"
 
         # SQLite CTE query with filtered attributes