Release sqlparser-rs version `0.64.0` around 2026-10-31

Follow on to
- https://github.com/apache/datafusion-sqlparser-rs/issues/2453

This ticket tracks creating the next sqlparser release (mostly so others can follow along)

**Target Release Date**: Approximately 2026-10-31

Release instructions: https://github.com/apache/datafusion-sqlparser-rs/blob/main/dev/release/README.md

Steps:
- [ ] Make a PR to update version / `CHANGELOG.md`:
- [ ] Tested with downstream projects (e.g. DataFusion):
- [ ] Create a Release Candidate (RC) and start vote:
- [ ] (When vote is approved) release to crates.io
- [ ] Make ticket for next release:

Required fixes:
- [ ] None yet 🎉

Commencez par dev/release/README.md et examinez la checklist de release pour la version 0.64.0. Coordonnez la mise à jour de la version et de CHANGELOG.md, les tests en aval tels que DataFusion, le vote sur la release candidate et la publication sur crates.io. L’issue est terminée lorsque la release approuvée est publiée et que le ticket de la prochaine release est créé.

Rédigé par le modèle d'indexation à partir du texte de l'issue.