chore(release): Update changelog and package version [skip ci]

Author: Apify Release Bot

CHANGELOG.md

@@ -2,8 +2,7 @@
 
 All notable changes to this project will be documented in this file.
 
-<!-- git-cliff-unreleased-start -->
-## 0.6.0 - **not yet released**
+## [0.6.0a1](https://github.com/apify/crawlee-python/releases/tag/v0.6.0a1) (2025-02-19)
 
 ### 🚀 Features
 
@@ -23,7 +22,6 @@ All notable changes to this project will be documented in this file.
 - [**breaking**] Remove Base prefix from abstract class names ([#980](https://github.com/apify/crawlee-python/pull/980)) ([8ccb5d4](https://github.com/apify/crawlee-python/commit/8ccb5d41a1dae9b02088b433266ac89bd089561a)) by [@vdusek](https://github.com/vdusek)
 
 
-<!-- git-cliff-unreleased-end -->
 ## [0.5.4](https://github.com/apify/crawlee-python/releases/tag/v0.5.4) (2025-02-05)
 
 ### 🚀 Features