Fixes the lavaland clown prefab by adding a normal floor underneath the airlock. #11177

Job	Run time
Run Linters	2m 26s
Collect data for other tasks	12s
Windows Build	1m 53s
Compile Maps	2m 30s
Integration Tests (boxstation) / run_integration_tests	9m 12s
Integration Tests (blueshift) / run_integration_tests	9m 37s
Integration Tests (deltastation) / run_integration_tests	9m 45s
Integration Tests (icebox) / run_integration_tests	13m 57s
Integration Tests (kilostation) / run_integration_tests	9m 49s
Integration Tests (metastation) / run_integration_tests	8m 40s
Integration Tests (multiz_debug) / run_integration_tests	8m 23s
Integration Tests (northstar) / run_integration_tests	13m 53s
Integration Tests (ouroboros) / run_integration_tests	14m 20s
Integration Tests (runtimestation) / run_integration_tests	8m 21s
Integration Tests (tramstation) / run_integration_tests	13m 31s
Integration Tests (voidraptor) / run_integration_tests	13m 47s
Alternate Tests (515, 1627, runtimestation) / run_integration_tests	8m 13s
Check Alternate Tests	1s
Compare Screenshot Tests	18s
	2h 28m 48s

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