Update bindgen to 0.69

[jeffcharles]

Description of the change

Updating bindgen to 0.69.

Why am I making this change?

I needed to make a code change for CI to pass so I want to put that code change through a review.

There are currently no audits available to import for bindgen 0.69.

Checklist

• I've updated the relevant CHANGELOG files if necessary. Changes to javy-cli and javy-core do not require updating CHANGELOG files.
• I've updated the relevant crate versions if necessary. Versioning policy for library crates
• I've updated documentation including crate documentation if necessary.