Update changelog

Author: thecrypticace

CHANGELOG.md

@@ -18,6 +18,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fix whitespace removal inside nested concat and template expressions ([#396](https://github.com/tailwindlabs/prettier-plugin-tailwindcss/pull/396))
 - Fallback to Tailwind CSS v4 instead of v3 by default ([#390](https://github.com/tailwindlabs/prettier-plugin-tailwindcss/pull/390))
 - Support sorting in function calls in Twig ([#358](https://github.com/tailwindlabs/prettier-plugin-tailwindcss/pull/358))
+- Support regular expression patterns for attributes ([#405](https://github.com/tailwindlabs/prettier-plugin-tailwindcss/pull/405))
 
 ## [0.6.14] - 2025-07-09