* Calls Allocate on the spawn humans unit test humans (#79827)
## About The Pull Request
I have found a unit test that spawn instances of
`/mob/living/carbon/human/consistent`, without using `allocate`, so they
won't get into the list of things to be deleted when CI finishes
running. This PR ensures that they won't stick around after the unit
test has finished.
I kept them picking a random tile from the unit test room, instead of
going with `allocate`'s default of the test area's bottom left corner.
Could have maybe swapped it to pick_n_take so there is no chance of them
piling up, but that is not relevant to the CI issue.
## Why It's Good For The Game
Maybe this will stop the random CI failures where
`/mob/living/carbon/human/consistent` fails to be deleted.
## Changelog
Nothing player facing
* Calls Allocate on the spawn humans unit test humans
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Co-authored-by: Profakos <profakos@gmail.com>
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