Update bindgen requirement from =0.72.0 to =0.72.1

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/v0.72.1/CHANGELOG.md)
- [Commits](rust-lang/rust-bindgen@v0.72.0...v0.72.1)

---
updated-dependencies:
- dependency-name: bindgen
  dependency-version: 0.72.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

api_gen/Cargo.toml

@@ -5,4 +5,4 @@ edition = "2021"
 
 [dependencies]
 # Version-locked to not make the CI go out of date
-bindgen = "=0.72.0"
+bindgen = "=0.72.1"