Change age_prefix on Anonymous Facehugers to be "nameless" #23616

Job	Run time
Lint with OpenDream	20s
Compile Maps	41s
Find Maps to Test	11s
Run Linters	2m 22s
Windows Build	1m 49s
Alternate Tests	0s
Check Alternate Tests	0s
Unit Tests (bigredv2) / run_unit_tests	2m 51s
Unit Tests (almayer) / run_unit_tests	2m 58s
Unit Tests (chinook) / run_unit_tests	2m 49s
Unit Tests (corsat) / run_unit_tests	2m 57s
Unit Tests (fiorina_sciannex) / run_unit_tests	2m 56s
Unit Tests (desert_dam) / run_unit_tests	3m 9s
Unit Tests (ice_colony_v2) / run_unit_tests	2m 55s
Unit Tests (kutjevo) / run_unit_tests	2m 48s
Unit Tests (lv522_chances_claim) / run_unit_tests	3m 3s
Unit Tests (lv624) / run_unit_tests	2m 58s
Unit Tests (new_varadero) / run_unit_tests	2m 49s
Unit Tests (prison_station_fop) / run_unit_tests	2m 57s
Unit Tests (runtime) / run_unit_tests	3m 10s
Unit Tests (shivas_snowball) / run_unit_tests	2m 50s
Unit Tests (sorokyne_strata) / run_unit_tests	2m 49s
Unit Tests (whiskey_outpost_v2) / run_unit_tests	2m 46s
	52m 8s

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