build(deps): update cbindgen requirement from 0.24 to 0.25

Updates the requirements on [cbindgen](https://github.com/eqrion/cbindgen) to permit the latest version.
- [Release notes](https://github.com/eqrion/cbindgen/releases)
- [Changelog](https://github.com/mozilla/cbindgen/blob/master/CHANGES)
- [Commits](mozilla/cbindgen@v0.24.0...v0.25.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

nsm-lib/Cargo.toml

@@ -10,7 +10,7 @@ aws-nitro-enclaves-nsm-api = { path = "../" }
 serde_bytes = "0.11"
 
 [build-dependencies]
-cbindgen = { version = "0.24", default-features = false }
+cbindgen = { version = "0.25", default-features = false }
 
 [lib]
 name = "nsm"