feat: release v0.9.0 (#135)

Author: Diaphteiros

VERSION

@@ -1 +1 @@
-v0.8.1-dev
+v0.9.0

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/Masterminds/semver/v3 v3.4.0
 	github.com/onsi/ginkgo/v2 v2.26.0
 	github.com/onsi/gomega v1.38.2
-	github.com/openmcp-project/cluster-provider-gardener/api v0.8.1
+	github.com/openmcp-project/cluster-provider-gardener/api v0.9.0
 	github.com/openmcp-project/openmcp-operator/api v0.15.2
 	gopkg.in/yaml.v3 v3.0.1
 	k8s.io/apimachinery v0.34.1