build

Removed workaround for assert_ractor #1659

Job	Run time
ruby-versions / Generate Ruby versions	2s
build (2.6 / ubuntu-latest)	30s
build (2.6 / macos-latest)	48s
build (2.6 / windows-latest)	1m 38s
build (2.7 / ubuntu-latest)	29s
build (2.7 / macos-latest)	38s
build (2.7 / windows-latest)	1m 30s
build (3.0 / ubuntu-latest)	15s
build (3.0 / macos-latest)	19s
build (3.0 / windows-latest)	1m 12s
build (3.1 / ubuntu-latest)	20s
build (3.1 / macos-latest)	16s
build (3.1 / windows-latest)	1m 5s
build (3.2 / ubuntu-latest)	21s
build (3.2 / macos-latest)	16s
build (3.2 / windows-latest)	1m 2s
build (3.3 / ubuntu-latest)	19s
build (3.3 / macos-latest)	13s
build (3.3 / windows-latest)	1m 44s
build (3.4 / ubuntu-latest)	20s
build (3.4 / macos-latest)	15s
build (3.4 / windows-latest)	1m 0s
build (head / ubuntu-latest)	19s
build (head / macos-latest)	22s
build (truffleruby-head / ubuntu-latest)	49s
build (truffleruby-head / macos-latest)	49s
build (mingw / windows-latest)	51s
build (mswin / windows-2022)	1m 6s
	18m 48s

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