macos

Suppress warnings against pattern matching on ruby 2.7 #574

Job	Run time
ruby-versions / Generate Ruby versions	4s
macos-13 3.1	19s
macos-13 2.7	59s
macos-13 3.0	20s
macos-13 3.3	25s
macos-13 debug	37s
macos-13 3.2	19s
macos-13 head	25s
macos-14 3.0	13s
macos-13 3.4	20s
macos-14 3.4	15s
macos-13 jruby-head	1m 51s
macos-14 head	14s
macos-14 3.1	16s
macos-14 2.7	38s
macos-14 jruby-head	49s
macos-14 debug	32s
macos-14 3.2	22s
macos-14 3.3	22s
	9m 20s

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