feat: add cache to mittre retrieval

tdagent/tools/retrieve_from_mitre_attack.py

@@ -1,9 +1,17 @@
 from typing import Any
 
+import cachetools
 import gradio as gr
 from attackcti import attack_client
 
 
+_CACHE_MAX_SIZE = 4096
+_CACHE_TTL_SECONDS = 3600
+
+
+@cachetools.cached(
+    cache=cachetools.TTLCache(maxsize=_CACHE_MAX_SIZE, ttl=_CACHE_TTL_SECONDS),
+)
 def get_stix_object_of_attack_id(
     attack_id: str,
     object_type: str = "attack-pattern",