macos

[DOC] Doc for StringIO#each_char #529

Job	Run time
ruby-versions / Generate Ruby versions	5s
macos-13 2.7	55s
macos-13 3.1	27s
macos-13 3.3	41s
macos-14 2.7	37s
macos-13 jruby-head	1m 25s
macos-13 3.0	21s
macos-13 3.2	19s
macos-14 3.0	14s
macos-14 3.3	20s
macos-13 debug	30s
macos-14 3.1	13s
macos-13 3.4	35s
macos-14 head	17s
macos-14 3.4	15s
macos-13 head	23s
macos-14 debug	26s
macos-14 jruby-head	47s
macos-14 3.2	16s
	9m 6s

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