[MIRROR] Improves tgui build speed #2124

Job	Run time
Run Linters	2m 46s
Collect data for other tasks	18s
Windows Build	2m 28s
Compile Maps	4m 0s
Integration Tests (birdshot) / run_integration_tests	11m 45s
Alternate Tests (515, 1603, runtimestation) / run_integration_tests	9m 52s
Integration Tests (blueshift) / run_integration_tests	13m 6s
Integration Tests (deltastation) / run_integration_tests	12m 11s
Integration Tests (gateway_test) / run_integration_tests	13m 29s
Integration Tests (icebox) / run_integration_tests	12m 12s
Integration Tests (kilostation2) / run_integration_tests	11m 39s
Integration Tests (metastation) / run_integration_tests	11m 37s
Integration Tests (multiz_debug) / run_integration_tests	11m 15s
Integration Tests (northstar) / run_integration_tests	12m 31s
Integration Tests (nssjourney) / run_integration_tests	12m 24s
Integration Tests (tramstation) / run_integration_tests	12m 16s
Integration Tests (runtimestation) / run_integration_tests	11m 4s
Integration Tests (voidraptor) / run_integration_tests	11m 55s
Check Alternate Tests	1s
Compare Screenshot Tests	3m 2s
	2h 59m 51s

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