change the Kubernetes version to 1.31.13

Author: Peng Zhou

Makefile

@@ -12,7 +12,7 @@ export E2E_DOCKER_IMAGE ?= $(IMG)
 export E2E_KUSTOMIZE_VERSION ?= $(KUSTOMIZE_VERSION)
 export E2E_CONTROLLER_TOOLS_VERSION ?= $(CONTROLLER_TOOLS_VERSION)
 export E2E_MARKLOGIC_IMAGE_VERSION ?= progressofficial/marklogic-db:11.3.1-ubi-rootless-2.1.3
-export E2E_KUBERNETES_VERSION ?= v1.34.0
+export E2E_KUBERNETES_VERSION ?= v1.31.13
 
 # ENVTEST_K8S_VERSION refers to the version of kubebuilder assets to be downloaded by envtest binary.
 ENVTEST_K8S_VERSION = 1.31.13