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

[alamb]

Follow on to

• Release sqlparser-rs version 0.63.0 around 2026-08-31 #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 🎉