Bump setup-envtest to release-0.20

Author: sbueringer

Makefile

@@ -105,7 +105,7 @@ KUSTOMIZE_BIN := kustomize
 KUSTOMIZE := $(abspath $(TOOLS_BIN_DIR)/$(KUSTOMIZE_BIN)-$(KUSTOMIZE_VER))
 KUSTOMIZE_PKG := sigs.k8s.io/kustomize/kustomize/v5
 
-SETUP_ENVTEST_VER := release-0.19
+SETUP_ENVTEST_VER := release-0.20
 SETUP_ENVTEST_BIN := setup-envtest
 SETUP_ENVTEST := $(abspath $(TOOLS_BIN_DIR)/$(SETUP_ENVTEST_BIN)-$(SETUP_ENVTEST_VER))
 SETUP_ENVTEST_PKG := sigs.k8s.io/controller-runtime/tools/setup-envtest