Fixed type hinting in get_netdash_equipment function to support older Python versions

inventory_provider/routes/poller.py

@@ -74,6 +74,7 @@ import json
 import logging
 import re
 from functools import partial
+from typing import Dict
 
 from flask import Blueprint, Response, current_app, request, jsonify
 
@@ -914,7 +915,7 @@ def interfaces(hostname=None):
     return Response(result, mimetype="application/json")
 
 
-def get_netdash_equipment() -> dict[str, str]:
+def get_netdash_equipment() -> Dict[str, str]:
     """Get the netdash equipment mapping from redis."""
     current_redis = common.get_current_redis()
     return json.loads(current_redis.get('netdash').decode('utf-8'))