Bump kpromo to v4.0.4

Author: sbueringer

Makefile

@@ -129,10 +129,10 @@ GO_APIDIFF_BIN := go-apidiff
 GO_APIDIFF := $(abspath $(TOOLS_BIN_DIR)/$(GO_APIDIFF_BIN)-$(GO_APIDIFF_VER))
 GO_APIDIFF_PKG := github.com/joelanford/go-apidiff
 
-KPROMO_VER := v3.6.0
+KPROMO_VER := v4.0.4
 KPROMO_BIN := kpromo
 KPROMO :=  $(abspath $(TOOLS_BIN_DIR)/$(KPROMO_BIN)-$(KPROMO_VER))
-KPROMO_PKG := sigs.k8s.io/promo-tools/v3/cmd/kpromo
+KPROMO_PKG := sigs.k8s.io/promo-tools/v4/cmd/kpromo
 
 YQ_VER := v4.25.2
 YQ_BIN := yq
@@ -742,10 +742,10 @@ $(SETUP_ENVTEST): # Build setup-envtest.
 	GOBIN=$(TOOLS_BIN_DIR) $(GO_INSTALL) $(SETUP_ENVTEST_PKG) $(SETUP_ENVTEST_BIN) $(SETUP_ENVTEST_VER)
 
 $(KPROMO):
-	GOBIN=$(TOOLS_BIN_DIR) $(GO_INSTALL) $(KPROMO_PKG) $(KPROMO_BIN) ${KPROMO_VER}
+	GOBIN=$(TOOLS_BIN_DIR) $(GO_INSTALL) $(KPROMO_PKG) $(KPROMO_BIN) $(KPROMO_VER)
 
 $(YQ):
-	GOBIN=$(TOOLS_BIN_DIR) $(GO_INSTALL) $(YQ_PKG) $(YQ_BIN) ${YQ_VER}
+	GOBIN=$(TOOLS_BIN_DIR) $(GO_INSTALL) $(YQ_PKG) $(YQ_BIN) $(YQ_VER)
 
 $(GINKGO): # Build ginkgo.
 	GOBIN=$(TOOLS_BIN_DIR) $(GO_INSTALL) $(GINKGO_PKG) $(GINKGO_BIN) $(GINGKO_VER)