Kouhei Sutou created ARROW-8252:
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Summary: [CI][Ruby] Add Ubuntu 20.04
Key: ARROW-8252
URL: https://issues.apache.org/jira/browse/ARROW-8252
Project: Apache Arrow
Issue Type: Improvement
Components: Continuous Integration, Ruby
Reporter: Kouhei Sutou
Assignee: Kouhei Sutou-- This message was sent by Atlassian Jira (v8.3.4#803005)
