arrow

GH-38240: [Docs] version_match should match the version from versions.json (#38241)

This PR corrects the version for the `version_match` to be equal to the version defined in versions.json. This way the text is correctly displayed in the version switcher button.
* Closes: #38240

Authored-by: AlenkaF <frim.alenka@gmail.com>
Signed-off-by: Joris Van den Bossche <jorisvandenbossche@gmail.com>