feat: release v0.15.0 (#104)

Co-authored-by: Robert Gräff <robert.graeff@sap.com>

Author: Diaphteiros

VERSION

@@ -1 +1 @@
-v0.14.0-dev
+v0.15.0

go.mod

@@ -11,7 +11,7 @@ require (
 	github.com/onsi/ginkgo v1.16.5
 	github.com/onsi/ginkgo/v2 v2.23.4
 	github.com/onsi/gomega v1.38.0
-	github.com/openmcp-project/controller-utils/api v0.14.0
+	github.com/openmcp-project/controller-utils/api v0.15.0
 	github.com/spf13/pflag v1.0.6
 	github.com/stretchr/testify v1.10.0
 	go.uber.org/zap v1.27.0