[GR-61459] Ensure objects are not modified while graphs are persisted #20956

Job	Run time
/substratevm on Windows	8m 43s
/compiler style,fullbuild,test JDK21	31m 39s
/compiler build,bootstraplite JDKlatest	4m 8s
/espresso style,fullbuild JDK21	13m 10s
/substratevm style,fullbuild JDKlatest	11m 11s
/substratevm build,helloworld,native_unittests JDKlatest	20m 9s
/substratevm build,debuginfotest JDKlatest	22m 58s
/substratevm hellomodule JDKlatest	4m 49s
/sulong style,fullbuild,sulongBasic JDK21	20m 59s
/truffle JDK21	33m 38s
/vm build,sulong JDKlatest	26m 59s
/vm build JDKlatest	15m 55s
	3h 34m 18s

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