macos

Make sure shared buffer is copied on mutation #415

Job	Run time
ruby-versions / Generate Ruby versions	3s
macos-13 2.7	50s
macos-13 3.0	15s
macos-13 3.1	19s
macos-13 3.2	20s
macos-13 3.3	20s
macos-13 3.4	24s
macos-13 debug	25s
macos-13 head	23s
macos-14 2.7	36s
macos-14 3.0	12s
macos-14 3.1	12s
macos-14 3.2	15s
macos-14 3.3	12s
macos-14 3.4	14s
macos-14 debug	17s
macos-14 head	15s
	5m 32s

Provide feedback