fix(deps): update module github.com/openmcp-project/controller-utils to v0.16.0

Author: renovate[bot]

go.mod

@@ -10,7 +10,7 @@ require (
 	github.com/fluxcd/pkg/apis/meta v1.13.0
 	github.com/fluxcd/source-controller/api v1.6.2
 	github.com/go-logr/logr v1.4.3
-	github.com/openmcp-project/controller-utils v0.11.0
+	github.com/openmcp-project/controller-utils v0.16.0
 	github.com/pkg/errors v0.9.1
 	github.com/stretchr/testify v1.10.0
 	gotest.tools/v3 v3.5.2