refactor(specs): use cached session in whatthespec.py

"""WhatTheSpec metadata fetcher."""

import requests

from pathlib import Path

from tdoc_crawler.http_client import create_cached_session

from tdoc_crawler.models.base import DEFAULT_CACHE_DIR

from tdoc_crawler.specs.normalization import normalize_spec_number

    normalized = normalize_spec_number(spec_number)

    compact = normalized.replace(".", "")

    url = f"https://whatthespec.net/3gpp/spec.php?q={compact}&api=1"

    response = requests.get(url, timeout=30)

    cache_dir: Path = DEFAULT_CACHE_DIR

    session = create_cached_session(cache_dir=cache_dir)

    response = session.get(url, timeout=30)

    response.raise_for_status()

    payload = response.json()

    metadata = {}