Try macOS 13 #13

Job	Run time
ruby-versions / Generate Ruby versions	3s
build (2.5 / ubuntu-latest)	24s
build (2.5 / macos-13)	55s
build (2.5 / windows-latest)	2m 38s
build (2.6 / ubuntu-latest)	23s
build (2.6 / macos-13)	55s
build (2.6 / windows-latest)	2m 51s
build (2.7 / ubuntu-latest)	22s
build (2.7 / macos-13)	57s
build (2.7 / windows-latest)	1m 48s
build (3.0 / ubuntu-latest)	14s
build (3.0 / macos-13)	20s
build (3.0 / windows-latest)	1m 27s
build (3.1 / ubuntu-latest)	12s
build (3.1 / macos-13)	21s
build (3.1 / windows-latest)	1m 6s
build (3.2 / ubuntu-latest)	13s
build (3.2 / macos-13)	24s
build (3.2 / windows-latest)	1m 42s
build (3.3 / ubuntu-latest)	10s
build (3.3 / macos-13)	27s
build (3.3 / windows-latest)	1m 34s
build (head / ubuntu-latest)	10s
build (head / macos-13)	22s
build (truffleruby-head / ubuntu-latest)	26s
build (truffleruby-head / macos-13)	40s
build (mswin / windows-latest)	53s
build (mingw / windows-latest)	1m 14s
	23m 11s

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