Merge pull request #592 from y-yagi/fix_gemfile_for_34 #608

Job	Run time
ci-data	2s
Compile native gem for aarch64-linux	5m 27s
Compile native gem for aarch64-linux-musl	5m 44s
Compile native gem for arm64-darwin	5m 39s
Compile native gem for x64-mingw-ucrt	5m 33s
Compile native gem for x86_64-darwin	5m 36s
Compile native gem for x86_64-linux	5m 20s
Compile native gem for x86_64-linux-musl	5m 51s
	39m 12s

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