This update for rust-cbindgen fixes the following issues:

Update to version 0.24.3+git0:

* tests: Add a test for struct constants going through typedefs.
* bindings: Peel through typedefs for struct constant generation.
* bitflags: Be explicit in binary operators and such.
* constant: Add support for unary negation.
* bitflags: Make more operations constexpr.

Update to version 0.24.2+git0:

* bitflags: Be explicit in binary operators and such.
* constant: Add support for unary negation.
* bitflags: Make more operations constexpr.
* constant: Support suffixes for integers that otherwise would be narrowed.
* Fix specialization of `SomeType<N>` when `N` is a const parameter.
* Minor refactor of ConstExpr::load().