chore(deps): update dependency kubernetes-sigs/kustomize to v5.8.1

Author: scality-renovate[bot]

Makefile

@@ -243,7 +243,7 @@ GOLANGCI_LINT = $(LOCALBIN)/golangci-lint
 
 ## Tool Versions
 # renovate: datasource=github-releases depName=kubernetes-sigs/kustomize extractVersion=^kustomize/(?<version>.*)$
-KUSTOMIZE_VERSION ?= v5.6.0
+KUSTOMIZE_VERSION ?= v5.8.1
 # renovate: datasource=github-releases depName=kubernetes-sigs/controller-tools
 CONTROLLER_TOOLS_VERSION ?= v0.18.0
 #ENVTEST_VERSION is the version of controller-runtime release branch to fetch the envtest setup script (i.e. release-0.20)