pytezos 3.18 changelog dependency update

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: Wizard1209

CHANGELOG.md

@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog], and this project adheres to [Semantic Versioning].
 
-## Unreleased
+## [3.18.0](https://github.com/baking-bad/pytezos/compare/3.17.0...3.18.0) - 2026-05-21
 
 ### Changed