Generate changelog for v1.2.1

Author: GSadee

CHANGELOG-1.2.md

@@ -1,5 +1,13 @@
 # CHANGELOG
 
+### v1.2.1 (2022-11-14)
+
+- [#371](https://github.com/Sylius/RefundPlugin/issues/371) [Maintenance] Update README and PR template ([@GSadee](https://github.com/GSadee))
+- [#374](https://github.com/Sylius/RefundPlugin/issues/374) [Behat] Split suites into separate files + remove whitespaces from tags ([@GSadee](https://github.com/GSadee))
+- [#375](https://github.com/Sylius/RefundPlugin/issues/375) [Maintenance] Allow flex plugin during plugin installation ([@lchrusciel](https://github.com/lchrusciel))
+- [#379](https://github.com/Sylius/RefundPlugin/issues/379) [GitHub Actions] Configure global flex to fix the build ([@GSadee](https://github.com/GSadee))
+- [#391](https://github.com/Sylius/RefundPlugin/issues/391) Add missing csrf_token field ([@jakubtobiasz](https://github.com/jakubtobiasz))
+
 ### v1.2.0 (2022-04-27)
 
 - [#362](https://github.com/Sylius/RefundPlugin/issues/362) [Maintenance] Add TwigToPdfGenerator ([@coldic3](https://github.com/coldic3))