Investigate failure on truffleruby-head + macOS + XCode 14.2 #145

Job	Run time
ruby-versions / Generate Ruby versions	3s
build (2.5 / ubuntu-latest)	23s
build (2.5 / macos-latest)	58s
build (2.5 / windows-latest)	2m 28s
build (2.6 / ubuntu-latest)	26s
build (2.6 / macos-latest)	56s
build (2.6 / windows-latest)	2m 0s
build (2.7 / ubuntu-latest)	26s
build (2.7 / macos-latest)	2m 26s
build (2.7 / windows-latest)	1m 46s
build (3.0 / ubuntu-latest)	16s
build (3.0 / macos-latest)	19s
build (3.0 / windows-latest)	2m 22s
build (3.1 / ubuntu-latest)	15s
build (3.1 / macos-latest)	40s
build (3.1 / windows-latest)	1m 42s
build (3.2 / ubuntu-latest)	18s
build (3.2 / macos-latest)	19s
build (3.2 / windows-latest)	2m 10s
build (3.3 / ubuntu-latest)	17s
build (3.3 / macos-latest)	27s
build (3.3 / windows-latest)	2m 22s
build (head / ubuntu-latest)	10s
build (head / macos-latest)	21s
build (truffleruby-head / ubuntu-latest)	25s
build (truffleruby-head / macos-latest)	55s
build (mswin / windows-latest)	1m 48s
build (mingw / windows-latest)	1m 28s
	28m 26s

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