Changelog after 2.5.6 Release (#21337)

* update

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Author: justusschock

src/lightning/pytorch/CHANGELOG.md

@@ -32,13 +32,11 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 
 - Add MPS accelerator support for mixed precision ([#21209](https://github.com/Lightning-AI/pytorch-lightning/pull/21209))
 
-- Add `name()` function to accelerator interface (([#21325](https://github.com/Lightning-AI/pytorch-lightning/pull/21325)))
-
+-
 
 ### Removed
 
-- Remove support for deprecated and archived lightning-habana package ([#21327](https://github.com/Lightning-AI/pytorch-lightning/pull/21327))
-
+-
 
 ### Fixed
 
@@ -69,6 +67,16 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 
 ---
 
+## [2.5.6] - 2025-11-05
+
+### Changed
+
+- Add `name()` function to accelerator interface (([#21325](https://github.com/Lightning-AI/pytorch-lightning/pull/21325)))
+
+### Removed
+
+- Remove support for deprecated and archived lightning-habana package ([#21327](https://github.com/Lightning-AI/pytorch-lightning/pull/21327))
+
 ## [2.5.5] - 2025-09-05
 
 ### Changed