ModGC

Revert "ZJIT: Skip TestOpenURIProxy on Linux (#16606)" #2662

Job	Run time
check (mmtk, release, ubuntu-latest)	11m 23s
check (mmtk, release, macos-latest)	13m 22s
check (default, macos-latest)	8m 19s
check (default, ubuntu-latest)	8m 19s
	41m 23s

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