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GH-31735: [Docs][Release] Move release verification guide to developers documentation (#39960)

### Rationale for this change

The current verification guide is obsolete and should not be on the wiki.

### What changes are included in this PR?

Adding a new page with the release verification information.

### Are these changes tested?

The documentation will be generated and will use the preview-docs job.

### Are there any user-facing changes?

Yes but not relevant in terms of code changes.
* Closes: #31735

Lead-authored-by: Raúl Cumplido <raulcumplido@gmail.com>
Co-authored-by: Sutou Kouhei <kou@cozmixng.org>
Signed-off-by: Sutou Kouhei <kou@clear-code.com>