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Sutou Kouhei authored and GitHub committed 85f67cd22d2
GH-35187: [CI][C++] Use the latest arrow-testing (#35227) ### Rationale for this change apache/arrow-testing@ 47f7b56b25683202c1fd957668e13f2abafc0f12 is needed for GH-34643. ### What changes are included in this PR? GH-34631 reverted the updated by GH-34646 accidentally. ### Are these changes tested? Yes. ### Are there any user-facing changes? No. * Closes: #35187 Authored-by: Sutou Kouhei <kou@clear-code.com> Signed-off-by: Sutou Kouhei <kou@clear-code.com>