Reduce Kotlin-compose-wasm iteration count #737

Job	Run time
Test Browser on macOS (safari, main)	52s
Test Browser on Linux (firefox, disabled)	1m 23s
Test Browser on Linux (chrome, disabled)	1m 13s
Test Browser on macOS (safari, disabled)	1m 47s
Test Shell (v8, main)	42s
Test Browser on macOS (safari, default)	2m 50s
Test Browser on Linux (chrome, default)	1m 12s
Test Build	4m 41s
Test Shell (jsc, disabled)	1m 55s
Test Shell (jsc, default)	3m 10s
Test Shell (spidermonkey, default)	5m 24s
Test Shell (v8, default)	2m 43s
Test Shell (v8, disabled)	1m 38s
Test Browser on Linux (firefox, default)	1m 31s
Test Browser on Linux (firefox, main)	50s
Test Browser on Linux (chrome, main)	38s
Test Shell (spidermonkey, main)	52s
Test Shell (jsc, main)	45s
Test Shell (spidermonkey, disabled)	2m 14s
	36m 20s

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