Prepare version 0.10.3

Signed-off-by: Christian Wolf <github@christianwolf.email>

CHANGELOG.md

@@ -1,5 +1,8 @@
 ## [Unreleased]
 
+
+## 0.10.3 - 2023-12-04
+
 ### Added
 - Add yield calculator
   [#1573](https://github.com/nextcloud/cookbook/pull/1573) @j0hannesr0th

docs/dev/api/changelog/0.md

@@ -8,6 +8,9 @@ This serves only for developers to find the changes better.
 
 ## Unpublished
 
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+## Version 0.1.2 - cookbook v0.10.3 - 2023-12-04
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 ### Deprecation of recipe_id in recipe stubs
 
 The current implementation has a minor inconsistenncy that for `Recipe` objects, there is a `id` as string and for `RecipeStub` objects, there is a `recipe_id` as int.