[GC] Fix data type in IOPrioritySizePolicy #224

Job	Run time
Prerequisites / Check Commit Message	2m 54s
Prerequisites / Prerequisites	46s
linux-x64 / build (debug)	5m 17s
riscv64 / build (release)	5m 17s
linux-aarch64 / build (debug)	5m 21s
linux-x64 / build (release)	5m 18s
windows-x64 / build (debug)	5m 8s
linux-aarch64 / build (release)	5m 24s
windows-x64 / build (release)	5m 10s
windows-x64	1s
linux-x64	1s
linux-aarch64	1s
Remove bundle artifacts	1s
	40m 39s

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