Improved the changelog.

Signed-off-by: Hermann Mayer <hermann.mayer92@gmail.com>

CHANGELOG.md

@@ -2,50 +2,50 @@
 
 * TODO: Replace this bullet point with an actual description of a change.
 
-### 1.2.5
+### 1.2.5 (15 August 2024)
 
 * Just a retag of 1.2.1
 
-### 1.2.4
+### 1.2.4 (15 August 2024)
 
 * Just a retag of 1.2.1
 
-### 1.2.3
+### 1.2.3 (15 August 2024)
 
 * Just a retag of 1.2.1
 
-### 1.2.2
+### 1.2.2 (9 August 2024)
 
 * Just a retag of 1.2.1
 
-### 1.2.1
+### 1.2.1 (9 August 2024)
 
 * Added API docs building to continuous integration (#25)
 
-### 1.2.0
+### 1.2.0 (8 July 2024)
 
 * Moved the development dependencies from the gemspec to the Gemfile (#19)
 * Introduce `after_response` callback (#22)
 * Fix response parsing for responses exceeding the page size (#23)
 * Dropped support for Ruby <2.7 (#24)
 
-### 1.1.0
+### 1.1.0 (24 February 2023)
 
 * Added support for Gem release automation
 
-### 1.0.0
+### 1.0.0 (18 January 2023)
 
 * Bundler >= 2.3 is from now on required as minimal version (#18)
 * Dropped support for Ruby < 2.5 (#18)
 * Dropped support for Rails < 5.2 (#18)
 * Updated all development/runtime gems to their latest
   Ruby 2.5 compatible version (#18)
 
-### 0.4.1
+### 0.4.1 (27 June 2022)
 
 * Added `InvoiceComment` models (#17)
 
-### 0.3.0
+### 0.3.0 (11 October 2021)
 
 * Improve error handling (breaking change, as we are now raising
   `Billomat::GatewayError`s rather than just the client's
@@ -56,7 +56,7 @@
 * Moved to GitHub Actions
 * Migrated to our own coverage reporting
 
-### 0.2.0
+### 0.2.0 (12 May 2021)
 
 * Add codeclimate test runner
 * Update codeclimate reporter id
@@ -65,31 +65,31 @@
 * Changed travis-ci.org to travis-ci.com links
 * Adds templates and tags to models (#13)
 
-### 0.1.6
+### 0.1.6 (16 May 2018)
 
 * Support registered apps
 * Added `app_id` and `app_secret` to configuration (#9)
 
-### 0.1.5
+### 0.1.5 (14 November 2017)
 
 * Added contact support
 
-### 0.1.4
+### 0.1.4 (9 November 2017)
 
 * Made timeout configurable
 
-### 0.1.3
+### 0.1.3 (27 October 2017)
 
 * Added `#as_json` to base model
 
-### 0.1.2
+### 0.1.2 (27 October 2017)
 
 * Small fixes and code coverage
 
-### 0.1.1
+### 0.1.1 (19 October 2017)
 
 * Improved documentation and README
 
-### 0.1.0
+### 0.1.0 (5 October 2017)
 
 * Initial release