Fix lint task in CI

The lint task was failing at head, due to a nolint:exhaustive error
directive that golangci nolintlint believes is unused.

Issue seems to be golangci/golangci-lint#3228
and seems to be a bug in golang-ci / nolintlint, using the workaround
proposed in golangci/golangci-lint#1940
which is to clear the cache between runs.

Makefile-modules.mk

@@ -14,6 +14,7 @@ include $(KUSTOMIZE_ROOT)/Makefile-tools.mk
 .PHONY: lint test fix fmt tidy vet build
 
 lint: $(MYGOBIN)/golangci-lint
+	$(MYGOBIN)/golangci-lint cache clean # Workaround for https://github.com/golangci/golangci-lint/issues/3228
 	$(MYGOBIN)/golangci-lint \
 	  -c $$KUSTOMIZE_ROOT/.golangci.yml \
 	  --path-prefix $(shell pwd | sed -E 's|(.*\/kustomize)/(.*)|\2|') \