chore: prepare release 3.5.1

Author: ramsey

CHANGELOG.md

@@ -5,6 +5,30 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 3.5.1 - 2023-04-27
+
+### Added
+
+- Nothing.
+
+### Changed
+
+- Nothing.
+
+### Deprecated
+
+- Nothing.
+
+### Removed
+
+- Nothing.
+
+### Fixed
+
+- Remove code supporting old versions of symfony/process.
+
+- Improve checks for line-endings.
+
 ## 3.5.0 - 2023-04-27
 
 ### Added