docs(changelog): 0.8.4 release

CHANGELOG.md

@@ -5,12 +5,11 @@ 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
+## [0.8.4] - 2023-06-19
 ### Fixed
 - Don't pass `-p` option to `tasty` if no paths to filter on are detected.
 - Tree-sitter root node detection in test files for which namespaces
   cannot be detected: Allow `test` nodes to be root nodes, too.
-### Changed
 - Treat all files with `spec` or `test` in the path as test files.
 
 ## [0.8.3] - 2023-06-12