Merge bitcoin/bitcoin#31675: [test] fix p2p_orphan_handling.py empty orphanage check

2e75ebb [test] fix p2p_orphan_handling.py empty orphanage check (glozow)

Pull request description:

  Fix CI: https://cirrus-ci.com/task/4584274617171968?logs=ci#L2784

ACKs for top commit:
  maflcko:
    lgtm ACK 2e75ebb
  instagibbs:
    ACK 2e75ebb
  theStack:
    ACK 2e75ebb

Tree-SHA512: 7c5c4d1eb816368b2fdd8e090769ff586f69a9800a99ab99d42beda96c933b5c449dfece91b659d48e4c2d7dcaae0dde6441a294d33c991db3d85c15df0123b6

Author: fanquake

test/functional/p2p_orphan_handling.py

@@ -59,7 +59,7 @@ def wrapper(self):
             self.nodes[0].disconnect_p2ps()
             self.nodes[0].bumpmocktime(LONG_TIME_SKIP)
             # Check that mempool and orphanage have been cleared
-            assert_equal(0, len(self.nodes[0].getorphantxs()))
+            self.wait_until(lambda: len(self.nodes[0].getorphantxs()) == 0)
             assert_equal(0, len(self.nodes[0].getrawmempool()))
             self.wallet.rescan_utxos(include_mempool=True)
     return wrapper