Allows pyro spec flamer tanks to accept custom fuel #25803

Job	Run time
Lint with OpenDream	23s
Compile Maps	40s
Find Maps to Test	16s
Run Linters	2m 19s
Windows Build	1m 16s
Alternate Tests	0s
Check Alternate Tests	0s
Unit Tests (almayer) / run_unit_tests	3m 0s
Unit Tests (chinook) / run_unit_tests	2m 47s
Unit Tests (bigredv2) / run_unit_tests	3m 4s
Unit Tests (corsat) / run_unit_tests	2m 51s
Unit Tests (desert_dam) / run_unit_tests	2m 55s
Unit Tests (fiorina_sciannex) / run_unit_tests	2m 51s
Unit Tests (ice_colony_v2) / run_unit_tests	2m 53s
Unit Tests (kutjevo) / run_unit_tests	2m 53s
Unit Tests (lv522_chances_claim) / run_unit_tests	2m 45s
Unit Tests (lv624) / run_unit_tests	2m 54s
Unit Tests (new_varadero) / run_unit_tests	2m 54s
Unit Tests (prison_station_fop) / run_unit_tests	2m 50s
Unit Tests (runtime) / run_unit_tests	3m 2s
Unit Tests (sorokyne_strata) / run_unit_tests	2m 56s
Unit Tests (shivas_snowball) / run_unit_tests	3m 1s
Unit Tests (whiskey_outpost_v2) / run_unit_tests	2m 49s
	51m 19s

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