test

Compatibility with Fiber scheduler. #323

Job	Run time
ruby-versions / Generate Ruby versions	5s
build (2.6 / windows-latest)	1m 38s
build (2.7 / windows-latest)	1m 43s
build (3.0 / windows-latest)	1m 0s
build (2.7 / macos-latest)	36s
build (3.1 / ubuntu-latest)	13s
build (2.6 / ubuntu-latest)	27s
build (3.3 / macos-latest)	13s
build (3.4 / ubuntu-latest)	11s
build (3.1 / macos-latest)	14s
build (3.2 / macos-latest)	13s
build (2.6 / macos-latest)	44s
build (3.3 / ubuntu-latest)	11s
build (3.2 / windows-latest)	1m 7s
build (4.0 / macos-latest)	11s
build (3.4 / macos-latest)	13s
build (3.2 / ubuntu-latest)	12s
build (3.4 / windows-latest)	1m 8s
build (2.7 / ubuntu-latest)	26s
build (truffleruby-head / ubuntu-latest)	28s
build (4.0 / windows-latest)	58s
build (truffleruby / ubuntu-latest)	27s
build (head / windows-latest)	1m 5s
build (truffleruby-head / macos-latest)	22s
build (3.0 / ubuntu-latest)	11s
build (4.0 / ubuntu-latest)	14s
build (3.0 / macos-latest)	13s
build (3.3 / windows-latest)	1m 1s
build (head / macos-latest)	14s
build (head / ubuntu-latest)	11s
build (3.1 / windows-latest)	1m 17s
build (truffleruby / macos-latest)	38s
	18m 4s

Provide feedback