set GOTOOLCHAIN to GO_VERSION in Makefile

Author: prezha

Makefile

@@ -36,9 +36,9 @@ RPM_REVISION ?= 0
 # used by hack/jenkins/release_build_and_upload.sh and KVM_BUILD_IMAGE, see also BUILD_IMAGE below
 # update this only by running `make update-golang-version`
 GO_VERSION ?= 1.23.4
-# set GOTOOLCHAIN to local to override the toolchain version specified in go.mod and
-# use the one CI hosts has installed (ref: https://go.dev/doc/toolchain#GOTOOLCHAIN)
-export GOTOOLCHAIN := local
+# set GOTOOLCHAIN to GO_VERSION to override any toolchain version specified in
+# go.mod (ref: https://go.dev/doc/toolchain#GOTOOLCHAIN)
+export GOTOOLCHAIN := $(GO_VERSION)
 # update this only by running `make update-golang-version`
 GO_K8S_VERSION_PREFIX ?= v1.33.0