fix: Use execute_query instead of execute_query_single to return all customer contacts

VERSION

@@ -1 +1 @@
-1.3.117
+1.3.118

app/customers/backend/router.py

@@ -743,7 +743,7 @@ async def lock_customer_subscriptions(customer_id: int, lock_request: dict):
 @router.get("/customers/{customer_id}/contacts")
 async def get_customer_contacts(customer_id: int):
     """Get all contacts for a specific customer"""
-    rows = execute_query_single("""
+    rows = execute_query("""
         SELECT 
             c.*,
             cc.is_primary,