[PORT] Implements icon size caching to avoid unnecessary load in updatehealth #13934

Job	Run time
Start Gate	1s
Run Linters	2m 37s
Collect data for other tasks	17s
Windows Build	2m 6s
Compile Maps	2m 36s
Integration Tests (blueshift) / run_integration_tests	17m 38s
Integration Tests (boxstation) / run_integration_tests	13m 32s
Integration Tests (graveyard) / run_integration_tests	12m 30s
Integration Tests (deltastation) / run_integration_tests	13m 30s
Integration Tests (icebox) / run_integration_tests	13m 21s
Integration Tests (metastation) / run_integration_tests	14m 25s
Integration Tests (kilostation) / run_integration_tests	18m 8s
Integration Tests (multiz_debug) / run_integration_tests	16m 43s
Integration Tests (ouroboros) / run_integration_tests	13m 33s
Integration Tests (runtimestation) / run_integration_tests	11m 27s
Integration Tests (theseus) / run_integration_tests	17m 53s
Integration Tests (tramstation) / run_integration_tests	13m 54s
Integration Tests (voidraptor) / run_integration_tests	14m 7s
Alternate Tests (515, 1627, runtimestation) / run_integration_tests	11m 59s
Compare Screenshot Tests	25s
Completion Gate	1s
	3h 30m 43s

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