fix(benchmarks): sort functools import for ruff I001

Benchmark Static Quality failed because lru_cache was imported after the
stdlib from-imports block. Move it into the stdlib section so isort/ruff
accepts the validator cache change.

Co-authored-by: morluto <morluto@users.noreply.github.com>

Author: cursoragent

benchmarks/tooling/benchmark_contracts.py

@@ -4,11 +4,10 @@
 
 import json
 import tomllib
+from functools import lru_cache
 from pathlib import Path
 from typing import Any
 
-from functools import lru_cache
-
 from jsonschema import Draft202012Validator
 from jsonschema.exceptions import SchemaError, ValidationError