Bump to Go 1.21

Signed-off-by: Carlos Eduardo Arango Gutierrez <eduardoa@nvidia.com>

Makefile

@@ -8,7 +8,7 @@ IMAGE_BUILD_CMD ?= docker build
 IMAGE_BUILD_EXTRA_OPTS ?=
 IMAGE_PUSH_CMD ?= docker push
 CONTAINER_RUN_CMD ?= docker run
-BUILDER_IMAGE ?= golang:1.20-bullseye
+BUILDER_IMAGE ?= golang:1.21-bullseye
 BASE_IMAGE_FULL ?= debian:bullseye-slim
 BASE_IMAGE_MINIMAL ?= scratch
 
@@ -104,15 +104,13 @@ image-all: ensure-buildx yamls
 	$(IMAGE_BUILDX_CMD) $(IMAGE_BUILD_ARGS) $(IMAGE_BUILD_ARGS_FULL)
 	$(IMAGE_BUILDX_CMD) $(IMAGE_BUILD_ARGS) $(IMAGE_BUILD_ARGS_MINIMAL)
 
-
 # clean NFD labels on all nodes
 # devel only
 deploy-prune:
 	kubectl apply -k deployment/overlays/prune/
 	kubectl wait --for=condition=complete job -l app=nfd -n node-feature-discovery
 	kubectl delete -k deployment/overlays/prune/
 
-
 yamls:
 	@./hack/kustomize.sh $(K8S_NAMESPACE) $(IMAGE_REPO) $(IMAGE_TAG_NAME)
 
@@ -142,8 +140,6 @@ templates:
 	@rm nfd-worker.conf.tmp
 	@rm nfd-topology-updater.conf.tmp
 
-
-
 .generator.image.stamp: Dockerfile_generator
 	$(IMAGE_BUILD_CMD) \
 	    --build-arg BUILDER_IMAGE=$(BUILDER_IMAGE) \

go.mod

@@ -1,6 +1,6 @@
 module sigs.k8s.io/node-feature-discovery
 
-go 1.20
+go 1.21
 
 require (
 	github.com/fsnotify/fsnotify v1.6.0