Reimplements halloween pumpkin helmets event #17748

Job	Run time
Compile Maps	1m 27s
Run Linters	1m 34s
Windows Build	1m 52s
Find Maps to Test	11s
Unit Tests (almayer) / run_unit_tests	6m 43s
Unit Tests (chinook) / run_unit_tests	6m 26s
Unit Tests (bigredv2) / run_unit_tests	6m 55s
Unit Tests (corsat) / run_unit_tests	6m 24s
Unit Tests (desert_dam) / run_unit_tests	6m 39s
Unit Tests (ice_colony_v2) / run_unit_tests	6m 20s
Unit Tests (fiorina_sciannex) / run_unit_tests	6m 15s
Unit Tests (kutjevo) / run_unit_tests	6m 14s
Unit Tests (lv522_chances_claim) / run_unit_tests	6m 10s
Unit Tests (lv624) / run_unit_tests	6m 21s
Unit Tests (new_varadero) / run_unit_tests	6m 42s
Unit Tests (runtime) / run_unit_tests	6m 7s
Unit Tests (prison_station_fop) / run_unit_tests	6m 33s
Unit Tests (shivas_snowball) / run_unit_tests	6m 15s
Unit Tests (sorokyne_strata) / run_unit_tests	6m 25s
Unit Tests (whiskey_outpost_v2) / run_unit_tests	6m 14s
Alternate Tests (515, 1610, lv624) / run_unit_tests	6m 15s
Check Alternate Tests	1s
	1h 54m 3s

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