chore: Prepare release 1.16.12

Author: pawamoy

CHANGELOG.md

@@ -5,6 +5,14 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 <!-- insertion marker -->
+## [1.16.12](https://github.com/mkdocstrings/python/releases/tag/1.16.12) - 2025-06-03
+
+<small>[Compare with 1.16.11](https://github.com/mkdocstrings/python/compare/1.16.11...1.16.12)</small>
+
+### Bug Fixes
+
+- Only replace CSS class in first *highlighting* span ([d57740f](https://github.com/mkdocstrings/python/commit/d57740f874f056fb3ba1c6013ad04227df0f0af8) by Timothée Mazzucotelli). [Issue-281](https://github.com/mkdocstrings/python/issues/281)
+
 ## [1.16.11](https://github.com/mkdocstrings/python/releases/tag/1.16.11) - 2025-05-24
 
 <small>[Compare with 1.16.10](https://github.com/mkdocstrings/python/compare/1.16.10...1.16.11)</small>