chore(deps): update dependency golangci/golangci-lint to v2.6.0

Author: renovate[bot]

Makefile

@@ -352,7 +352,7 @@ nwa:
 	$(call go-install-tool,$(NWA),github.com/$(NWA_LOOKUP)@$(NWA_VERSION))
 
 GOLANGCI_LINT          := $(LOCALBIN)/golangci-lint
-GOLANGCI_LINT_VERSION  := v2.4.0
+GOLANGCI_LINT_VERSION  := v2.6.0
 GOLANGCI_LINT_LOOKUP   := golangci/golangci-lint
 golangci-lint: ## Download golangci-lint locally if necessary.
 	@test -s $(GOLANGCI_LINT) && $(GOLANGCI_LINT) -h | grep -q $(GOLANGCI_LINT_VERSION) || \