macos

[DOC] Class doc for StringIO #580

Job	Run time
ruby-versions / Generate Ruby versions	4s
macos-13 2.7	1m 12s
macos-13 3.0	24s
macos-13 3.4	38s
macos-13 3.1	28s
macos-14 2.7	35s
macos-13 head	26s
macos-14 3.0	15s
macos-13 3.2	31s
macos-13 jruby-head	2m 35s
macos-13 debug	53s
macos-13 3.3	35s
macos-14 3.1	21s
macos-14 3.3	20s
macos-14 head	21s
macos-14 jruby-head	47s
macos-14 debug	21s
macos-14 3.4	18s
macos-14 3.2	15s
	11m 19s

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