Merge bitcoin/bitcoin#28108: test: fix intermittent failure in wallet_resendwallettransactions.py

e667bd68a10512ddc784df44bdcb63ee441e5551 test: fix intermittent failure in wallet_resendwallettransactions.py (Martin Zumsande)

Pull request description:

  Fixes #28094

  The test bumps the mocktime for ~2 weeks and then triggers eviction from the mempool. But this bump will also cause a new resubmit, and if the timing is such that this resubmit happens right after the eviction and before the check that the tx was evicted, the test can fail as in #28094:

  ```
  node0 2023-07-17T21:31:23.809483Z (mocktime: 2023-08-02T09:46:27Z) [httpworker.1] [validation.cpp:267] [LimitMempoolSize] [mempool] Expired 2 transactions from the memory pool
  node0 2023-07-17T21:31:23.810079Z (mocktime: 2023-08-02T09:46:27Z) [scheduler] [wallet/wallet.h:895] [WalletLogPrintf] [default wallet] ResubmitWalletTransactions: resubmit 2 unconfirmed transactions
  node0 2023-07-17T21:31:23.810474Z (mocktime: 2023-08-02T09:46:27Z) [httpworker.2] [rpc/request.cpp:181] [parse] [rpc] ThreadRPCServer method=getmempoolentry user=__cookie__
  2023-07-17T21:31:23.811000Z TestFramework (ERROR): Assertion failed (...) AssertionError: No exception raised
  ```
  Fix this by flushing out the current resubmit call before triggering mempool eviction.

ACKs for top commit:
  MarcoFalke:
    Nice. lgtm ACK e667bd68a10512ddc784df44bdcb63ee441e5551
  achow101:
    ACK e667bd68a10512ddc784df44bdcb63ee441e5551
  jonatack:
    Light "this looks like the other tests in this file" ACK e667bd68a10512ddc784df44bdcb63ee441e5551

Tree-SHA512: 027c2177ecd8bea80ec388ec2564f8fcbc717efd2722304b16fc0e9fa7ad216af61977c4e360b8135de68586cf13b0aa729ffa4fa27bad655092c3a55f73933c

0 files changed, 0 insertions, 0 deletions