added Ditto 2.4.1 release notes

Signed-off-by: Thomas Jaeckle <thomas.jaeckle@bosch.io>

documentation/src/main/resources/_data/sidebars/ditto_sidebar.yml

@@ -23,6 +23,9 @@ entries:
       - title: Release Notes
         output: web
         folderitems:
+          - title: 2.4.1
+            url: /release_notes_241.html
+            output: web
           - title: 2.4.0
             url: /release_notes_240.html
             output: web

documentation/src/main/resources/pages/ditto/release_notes_241.md

@@ -0,0 +1,29 @@
+---
+title: Release notes 2.4.1
+tags: [release_notes]
+published: true
+keywords: release notes, announcements, changelog
+summary: "Version 2.4.1 of Eclipse Ditto, released on 25.08.2022"
+permalink: release_notes_241.html
+---
+
+This is a bugfix release, no new features since [2.4.0](release_notes_240.html) were added.
+
+## Changelog
+
+Compared to the latest release [2.4.0](release_notes_240.html), the following bugfixes were added.
+
+### Bugfixes
+
+This is a complete list of the
+[merged pull requests](https://github.com/eclipse/ditto/pulls?q=is%3Apr+milestone%3A2.4.1), including the fixed bugs.
+
+#### [In case of ThingDeleteModel always consider model as not outdated](https://github.com/eclipse/ditto/pull/1368)
+
+The search index could run into consistency problem which this fix improves.  
+The final fix for having a fully consistent search index however will only be available in Ditto `3.0.0` where the 
+index was completely rebuilt.
+
+#### [Enable self signed certificates for kafka](https://github.com/eclipse/ditto/pull/1456)
+
+Fix that self-signed certificates for Kafka connections could not be used.