changelog: write changelog for 1.13.3 release

Author: Firestar99

spirv-tools/CHANGELOG.md

@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased] - ReleaseDate
+- [PR#28](https://github.com/Rust-GPU/spirv-tools-rs/pull/28) fix `CXX=clang++` failing to build, and don't error on warnings
+
 ## [0.13.2] - 2026-02-16
 - [PR#26](https://github.com/Rust-GPU/spirv-tools-rs/pull/26) never skip C++ compile on clippy, [caused issues downstream](https://github.com/Rust-GPU/cargo-gpu/issues/140)