chore(deps): update dependency kubernetes-sigs/controller-tools to v0…

….15.0 (#667)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Makefile

@@ -211,7 +211,7 @@ CRDOC ?= $(LOCALBIN)/crdoc
 # renovate: datasource=github-tags depName=kubernetes-sigs/kustomize
 KUSTOMIZE_VERSION ?= v5.4.1
 # renovate: datasource=github-releases depName=kubernetes-sigs/controller-tools
-CONTROLLER_TOOLS_VERSION ?= v0.14.0
+CONTROLLER_TOOLS_VERSION ?= v0.15.0
 CRDOC_VERSION ?= v0.6.2
 
 KUSTOMIZE_INSTALL_SCRIPT ?= "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh"