Genesis test failure: restarting the mocked node is too slow

The "hopefully" and the "promptly" in this comment https://github.com/IntersectMBO/ouroboros-consensus/blob/da502c2c4d73ea177af3ab7a9630beafae4b7c6c/ouroboros-consensus-diffusion/test/consensus-test/Test/Consensus/PeerSimulator/NodeLifecycle.hs#L205 are incorrect.

```
$ git lg -1
99e49deff - (HEAD, origin/main, origin/HEAD) Add version `0.5` and its publishing date to the `utxo-db-api` doc (#1438) (21 hours ago)
$ cabal run ouroboros-consensus-diffusion:test:consensus-test -- --quickcheck-tests=1 --quickcheck-replay='(SMGen 52839424461818769 12444177963069598431,2)' -p '/the node is shut down and restarted after some time/' --quickcheck-shrinks=10000000
```

Inspecting that trace, I see that the wall clock advances a lot while the node is restarting, and so the ticks' timestamps and the wall clock seem to be out of sync.

I didn't dig enough to know why that's happening or exactly why it's leading to the test failure, but it is already evidence of a problem with the implementation of that test.

(Clarification: it does not block the first release of Genesis as an experimental feature.)