Update changelog

CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file. 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]
+
+## [v4.0.0](https://github.com/studiometa/js-toolkit/compare/3.0.2..4.0.0) (2023-04-11)
+
+### Changed
+
+- ⚠️ Update @studiometa/prettier-config v3 → v4 ([f5dfab0](https://github.com/studiometa/stylelint-config/commit/f5dfab0))
+- ⚠️ Update peer dependencies constraints ([fc90347](https://github.com/studiometa/stylelint-config/commit/fc90347), [6e74c45](https://github.com/studiometa/stylelint-config/commit/6e74c45))
+- ⚠️ Migrate to ESM only ([fc2392c](https://github.com/studiometa/stylelint-config/commit/fc2392c))
+- Update Node from 16 to 20 ([044d7b1](https://github.com/studiometa/stylelint-config/commit/044d7b1))
+- Update dependencies ([ba1ebdb](https://github.com/studiometa/stylelint-config/commit/ba1ebdb))