build

Suppress warnings #1411

Job	Run time
ruby-versions / Generate Ruby versions	3s
build (2.6 / ubuntu-latest)	27s
build (2.6 / macos-latest)	32s
build (2.6 / windows-latest)	2m 28s
build (2.7 / ubuntu-latest)	26s
build (2.7 / macos-latest)	27s
build (2.7 / windows-latest)	4m 26s
build (3.0 / ubuntu-latest)	15s
build (3.0 / macos-latest)	13s
build (3.0 / windows-latest)	1m 18s
build (3.1 / ubuntu-latest)	14s
build (3.1 / macos-latest)	13s
build (3.1 / windows-latest)	2m 10s
build (3.2 / ubuntu-latest)	14s
build (3.2 / macos-latest)	14s
build (3.2 / windows-latest)	1m 10s
build (3.3 / ubuntu-latest)	14s
build (3.3 / macos-latest)	17s
build (3.3 / windows-latest)	2m 39s
build (head / ubuntu-latest)	16s
build (head / macos-latest)	14s
build (mingw / windows-latest)	1m 34s
build (mswin / windows-2019)	1m 6s
	21m 10s

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