test

Restore gemspec file to gem package #310

Job	Run time
ruby-versions / Generate Ruby versions	2s
build (2.6 / ubuntu-latest)	20s
build (2.6 / macos-latest)	26s
build (2.7 / ubuntu-latest)	20s
build (2.7 / macos-latest)	25s
build (3.0 / ubuntu-latest)	6s
build (3.0 / macos-latest)	7s
build (3.0 / windows-latest)	1m 6s
build (3.1 / ubuntu-latest)	5s
build (3.1 / macos-latest)	8s
build (3.1 / windows-latest)	1m 21s
build (3.2 / ubuntu-latest)	7s
build (3.2 / macos-latest)	8s
build (3.2 / windows-latest)	1m 37s
build (3.3 / ubuntu-latest)	5s
build (3.3 / macos-latest)	8s
build (3.3 / windows-latest)	1m 25s
build (3.4 / ubuntu-latest)	5s
build (3.4 / macos-latest)	8s
build (3.4 / windows-latest)	1m 11s
build (head / ubuntu-latest)	8s
build (head / macos-latest)	8s
build (head / windows-latest)	1m 36s
	11m 12s

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