test

Bump up v3.2.1 #250

Job	Run time
ruby-versions / Generate Ruby versions	2s
build (2.5 / ubuntu-latest)	54s
build (2.5 / windows-latest)	2m 6s
build (2.6 / ubuntu-latest)	31s
build (2.6 / macos-latest)	33s
build (2.6 / windows-latest)	3m 45s
build (2.7 / ubuntu-latest)	24s
build (2.7 / macos-latest)	36s
build (2.7 / windows-latest)	2m 17s
build (3.0 / ubuntu-latest)	15s
build (3.0 / macos-latest)	17s
build (3.0 / windows-latest)	2m 8s
build (3.1 / ubuntu-latest)	14s
build (3.1 / macos-latest)	14s
build (3.1 / windows-latest)	1m 30s
build (3.2 / ubuntu-latest)	16s
build (3.2 / macos-latest)	11s
build (3.2 / windows-latest)	2m 29s
build (3.3 / ubuntu-latest)	10s
build (3.3 / macos-latest)	12s
build (3.3 / windows-latest)	3m 23s
build (head / ubuntu-latest)	14s
build (head / macos-latest)	19s
build (truffleruby-head / ubuntu-latest)	33s
build (truffleruby-head / macos-latest)	39s
build (mswin / windows-latest)	1m 40s
build (mingw / windows-latest)	1m 13s
	27m 5s

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