fix elastic error when fetching expired events (#2180)

fix `Result window is too large, from + size must be less than or equal to: [10000]`

server/planning/events/events.py

@@ -790,7 +790,7 @@ def get_expired_items(self, expiry_datetime, spiked_events_only=False):
         total_received = 0
         total_events = -1
 
-        while True:
+        while total_received + get_max_recurrent_events() < 10000:  # 10k is max elastic limit
             query["from"] = total_received
 
             results = self.search(query)