[MIRROR] Attempts to put out the CI fires (#28636)

* Attempts to put out the CI fires (#84277)

## About The Pull Request

![image](https://github.com/tgstation/tgstation/assets/13398309/d58de3f2-5adc-48f0-b207-608499f04250)

A lot of this all of a sudden, I am going to assume it's related to the
recent spark changes, which are most likely causing (literal) fires in
the testing area.

Fixes https://github.com/tgstation/tgstation/issues/84161
Fixes https://github.com/NovaSector/NovaSector/issues/3123

I'm still testing this one with a few CI runs but the timelines match up
with roughly around the time of the spark PR; it's most likely the
culprit.

EDIT: 8 CI runs so far and the issue has not come up, I am fairly
confident it was the sparks + fuel puddle combination that was the
problem.
EDIT EDIT: Found one more issue with /datum/material/plasma that needs
to be dealt with.
EDIT EDIT EDIT: Issue resolved

## Why It's Good For The Game

Save the burninating for in-game please!

## Changelog

Not player facing

* Attempts to put out the CI fires

---------

Co-authored-by: Bloop <13398309+vinylspiders@users.noreply.github.com>

code/modules/unit_tests/unit_test.dm

@@ -286,6 +286,10 @@ GLOBAL_VAR_INIT(focused_tests, focused_tests())
 	returnable_list += typesof(/obj/effect/anomaly/grav/high)
 	//See above
 	returnable_list += typesof(/obj/effect/timestop)
+	//Sparks can ignite a number of things, causing a fire to burn the floor away. Only you can prevent CI fires
+	returnable_list += typesof(/obj/effect/particle_effect/sparks)
+	//See above - These are one of those things.
+	returnable_list += typesof(/obj/effect/decal/cleanable/fuel_pool)
 	//Invoke async in init, skippppp
 	returnable_list += typesof(/mob/living/silicon/robot/model)
 	//This lad also sleeps