Prepare release v2.2.0

Author: jsor

CHANGELOG.md

@@ -4,6 +4,13 @@ Changelog
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](https://semver.org).
 
+2.2.0 - 2023-04-26
+------------------
+
+* Make handling create table sql simple and robust. Reuse native
+  Platform::getCreateTableSQL() instead of copying the code from Doctrine.
+* Skip create table generation if a table has no spatial indexes.
+
 2.1.0 - 2022-04-21
 ------------------