Cargo.toml: Update to bindgen 0.72.1

Needed for a potential MR on esp-idf-sys, probably good practice anyway.

Author: drinkcat

CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Add CACHEDIR.TAG to idf and pio temporary directories, to prevent Linux backups
   from picking them up (see TODO, no support is added for MacOS/Windows).
 - Fix build on esp-idf master branch (new platform).
+- bindgen: updated to the latest bindgen version. (#104)
 
 ## [0.33.1] - 2025-07-27
 - Fix a bug where the cmake utilities refused to work with CMake 4 due to a broken version check

Cargo.lock

@@ -79,7 +79,7 @@ which = { version = "4.1", optional = true }
 globwalk = { version = "0.8", optional = true }
 tempfile = { version = "3", optional = true }
 ureq = { version = "2", optional = true }
-bindgen = { version = "0.71.1", optional = true }
+bindgen = { version = "0.72.1", optional = true }
 dep-cmake = { package = "cmake", version = "0.1", optional = true }
 regex = { version = "1.5", optional = true, default-features = false, features = [
     "std",