Generate changelog for v1.6.1

Author: pamil

CHANGELOG-1.6.md

@@ -1,5 +1,9 @@
 ## CHANGELOG FOR `1.6.x`
 
+### v1.6.1 (2020-05-25)
+
+- [#30](https://github.com/Sylius/SyliusFixturesBundle/issues/30) Keep FIFO order in PriorityQueue ([@pamil](https://github.com/pamil))
+
 ### v1.6.0 (2020-05-24)
 
 - [#28](https://github.com/Sylius/SyliusFixturesBundle/issues/28) Add support for Symfony 5.0 / PHP 7.4 ([@pamil](https://github.com/pamil))