macos

Update `str_chilled_p` for Ruby 4.1 #675

Job	Run time
ruby-versions / Generate Ruby versions	4s
macos-14 3.2	28s
macos-14 3.4	16s
macos-14 3.3	16s
macos-14 3.1	16s
macos-14 debug	25s
macos-14 3.0	16s
macos-14 2.7	40s
macos-14 jruby-head	32s
macos-15-intel 3.0	31s
macos-15-intel 2.7	1m 13s
macos-15 2.7	36s
macos-14 head	16s
macos-15 3.2	11s
macos-15 3.0	19s
macos-15-intel 3.3	28s
macos-15-intel jruby-head	1m 20s
macos-15-intel 4.0	28s
macos-15-intel 3.4	29s
macos-15 4.0	14s
macos-15 3.3	17s
macos-15 3.1	18s
macos-15-intel debug	1m 39s
macos-15-intel 3.1	21s
macos-15 3.4	19s
macos-15 jruby-head	39s
macos-15 head	31s
macos-15 debug	33s
macos-15-intel 3.2	27s
macos-14 4.0	13s
macos-15-intel head	32s
	15m 7s

Provide feedback