telemetry.remove_peer_different_genesis_udp fails occasionally in unit tests

[dsiganos]

[ RUN      ] telemetry.remove_peer_different_genesis_udp
/workspace/nano/core_test/telemetry.cpp:671: Failure
Expected equality of these values:
  1
  node0->network.excluded_peers.peers.get<nano::peer_exclusion::tag_endpoint> ().count (node1->network.endpoint ().address ())
    Which is: 0
[  FAILED  ] telemetry.remove_peer_different_genesis_udp (3354 ms)

https://github.com/nanocurrency/nano-node/runs/5193293048?check_suite_focus=true#step:5:1434

This is long term failure, I remember seeing this occasionally every now and then.
It occurs infrequently.