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Sutou Kouhei authored and GitHub committed 757e0d5cca1
GH-37129: [CI][Docs] Use Ubuntu 22.04 (#37132) ### Rationale for this change It also reduces disk usage because we can use system gRPC on Ubuntu 22.04. ### What changes are included in this PR? Use Ubuntu 22.04. ### Are these changes tested? Yes. ### Are there any user-facing changes? No. * Closes: #37129 Authored-by: Sutou Kouhei <kou@clear-code.com> Signed-off-by: Sutou Kouhei <kou@clear-code.com>