[JDK-8344110] Adapt JDK-8343704: Bad GC parallelism with processing Cleaner queues #20334

Job	Run time
/substratevm on Windows	5m 0s
/compiler style,fullbuild,test JDK21	32m 12s
/compiler build,bootstraplite JDKlatest	4m 36s
/espresso style,fullbuild JDK21	17m 4s
/substratevm style,fullbuild JDK21	2m 55s
/substratevm build,helloworld,native_unittests JDKlatest	4m 33s
/substratevm build,debuginfotest JDKlatest	5m 7s
/substratevm hellomodule JDKlatest	4m 10s
/sulong style,fullbuild,sulongBasic JDK21	20m 20s
/truffle JDK21	34m 53s
/vm build,sulong JDKlatest	5m 31s
/vm build JDKlatest	5m 49s
	2h 22m 10s

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