Update bindgen requirement from 0.68.1 to 0.69.0

[dependabot]

Updates the requirements on bindgen to permit the latest version.

Release notes

Sourced from bindgen's releases.

v0.69.0

Install bindgen-cli 0.69.0

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/rust-lang/rust-bindgen/releases/download/v0.69.0/bindgen-cli-installer.sh | sh

Download bindgen-cli 0.69.0

File	Platform	Checksum
bindgen-cli-aarch64-apple-darwin.tar.xz	macOS Apple Silicon	checksum
bindgen-cli-x86_64-apple-darwin.tar.xz	macOS Intel	checksum
bindgen-cli-x86_64-unknown-linux-gnu.tar.xz	Linux x64	checksum

Changelog

Sourced from bindgen's changelog.

0.69.0 (2023-11-01)

Added

• Added the ParseCallbacks::header_file callback which runs on every filename passed to Builder::header.
• Added the CargoCallbacks::new constructor which emits a cargo-rerun line for every input header file by default.
• Added the CargoCallbacks::rerun_on_header_files method to configure whether a cargo-rerun line should be emitted for every input header file.

Changed

• The --wrap-static-fns feature was updated so function types that has no argument use void as its sole argument.
• CargoCallbacks is no longer a unit-like struct and the CargoCallbacks constant was added to mitigate the breaking nature of this change. This constant has been marked as deprecated and users will have to use the new CargoCallbacks::new method in the future.

Removed

Fixed

• Allow compiling bindgen-cli with a static libclang.
• Emit an opaque integer type for pointer types that don't have the same size as the target's pointer size.
• Avoid escaping Objective-C method names unless they are Self, self, crate or super.

Security

0.68.1

Fixed

• Fixed errors on the windows artifact build process.

0.68.0

Added

• The system ABI is now supported as an option for the --override-abi flag.
• The allowlist_item method and the --allowlist-item flag have been included to filter items regardless or their kind.
• Include installers as release artifacts on Github.

Changed

• The Clone implementation for _BindgenUnionField has been changed to pass the incorrect_clone_impl_on_copy_type Clippy lint.
• The c_unwind ABI can be used without a feature gate for any Rust target version equal to or greater than 1.71. This comes as a result of the ABI being stabilised (in Rust 1.71).
• Formatting changes when using prettyplease as a formatter due to a new prettyplease version.
• Avoid generating invalid CStr constants when using the --generate-cstr option.

Removed

• The extra_assert and extra_assert_eq macros are no longer exported.

Fixed

... (truncated)

Commits

• c73990c Rename secret for crates.io token
• 1279a11 chore: Release
• d1cc3c2 Update release instructions
• 7ed33dd Update the changelog using cargo release
• 04fa393 publish from GitHub release page (#2645)
• 5d1a254 Fix the check-cfg workflow (#2676)
• 89a84f6 Bump rustix from 0.36.7 to 0.36.16 (#2666)
• e41f9dc bump cargo dist, and disable trying to create windows releases (#2660)
• 100ab4c [Doc] Add missing entry for allowlist-item. (#2659)
• 7b95673 Let clap handle all CLI parsing errors (#2656)
• Additional commits viewable in compare view

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[GodotRust]

API docs are being generated and will be shortly available at: https://godot-rust.github.io/docs/gdnative/pr-1061

[chitoyuu]

The breaking items from the changelog don't seem relevant to our usage of the library.

bors r+

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