Update bindgen requirement from 0.68 to 0.69 (#131)

Updates the requirements on [bindgen](https://github.com/rust-lang/rust-bindgen) to permit the latest version.
- [Release notes](https://github.com/rust-lang/rust-bindgen/releases)
- [Changelog](https://github.com/rust-lang/rust-bindgen/blob/main/CHANGELOG.md)
- [Commits](rust-lang/rust-bindgen@v0.68.0...v0.69.1)

---
updated-dependencies:
- dependency-name: bindgen
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

sys/hacl/Cargo.toml

@@ -17,7 +17,7 @@ crate-type = ["cdylib", "rlib"]
 [build-dependencies]
 cc = { version = "1.0", features = ["parallel"] }
 libcrux-platform = { version = "=0.0.2-pre.1", path = "../platform" }
-bindgen = { version = "0.68", optional = true }
+bindgen = { version = "0.69", optional = true }
 
 [features]
 bindings = ["bindgen"] # generate fresh bindings

sys/libjade/Cargo.toml

@@ -16,7 +16,7 @@ cc = { version = "1.0", features = ["parallel"] }
 libcrux-platform = { version = "=0.0.2-pre.1", path = "../platform" }
 
 [target.'cfg(not(windows))'.build-dependencies]
-bindgen = { version = "0.68", optional = true }
+bindgen = { version = "0.69", optional = true }
 
 [dev-dependencies]
 pretty_env_logger = "0.5"

sys/pqclean/Cargo.toml

@@ -13,5 +13,5 @@ description = "pqclean wrapper for libcrux tests and benchmarks."
 
 [build-dependencies]
 cc = { version = "1.0", features = ["parallel"] }
-bindgen = "0.68"
+bindgen = "0.69"
 fs_extra = "1.2"