[Release] Binary verification CI jobs are failing

[kou]

Describe the bug, including details regarding any error messages, version, and platform.

https://github.com/apache/arrow/actions/runs/16214690396/job/45832724819?pr=47080#step:4:15

/home/runner/work/_temp/92b608fd-04d4-43f5-8c92-07a0be640b4c.sh: line 2: previous_major_version20: command not found

Component(s)

Release