Release arrow-rs / parquet Major version `61.0.0` (November 2026)

Let's keep the code flowing. Part of
- https://github.com/apache/arrow-rs/issues/7392

## Release Checklist:
- [ ] Release notes and bump version:
- [ ] Verify with downstream DataFusion tests:
- [ ] Release Candidate + Vote thread:
- [ ] Release to crates.io / approval:
- [ ] Create follow on tickets

## Required items for release
- [ ] None yet

## Requested items for release
- [ ] None yet

Start by reading the parent issue #7392 and the release checklist in this issue. Work through the release notes and version bump, downstream DataFusion tests, release candidate and vote thread, crates.io release approval, and follow-on tickets. Done means the listed release steps are completed and checked off.

Written by the indexing model from the issue text.