Prepare release 0.3.0

Author: schnatterer

CHANGELOG.md

@@ -7,11 +7,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.3.0](https://github.com/cloudogu/gitops-build-lib/releases/tag/0.3.0) - 2023-03-21
+
 ### Added
-- Specify `--kube-version ` for `helm template` and kubectl image through the `k8sVersion` parameter.  
-  ⚠️ `k8sVersion` has a default value, so this is no breaking change per se. However, depending on the helm chart used, 
-  the rendered result might look different from before where no `--kube-version` parameter was used.  
-  We recommend setting the `k8sVersion`. Double-check the commits in your GitOps repo. 
+- Add `k8sVersion` parameter.
+  - Specifies `--kube-version ` for `helm template` (ArgoCD) and
+  - `kubectl` image (if no explicit `buildImages.kubectl` parameter is used)
+  - ⚠️ `k8sVersion` has a default value, so this is no breaking change per se. However, depending on the helm chart used, 
+    the rendered result might look different from before where no `--kube-version` parameter was used.  
+    We recommend setting the `k8sVersion`. Double-check the commits in your GitOps repo. 
 
 ### Changed
 - Changed kubectl image from `lachlanevenson/k8s-kubectl` to `bitnami/kubectl`, because it is available for every k8s version out there