run modernize as part of 'make fmt'

Author: silverwind

Makefile

@@ -37,6 +37,7 @@ GO_LICENSES_PACKAGE ?= github.com/google/go-licenses@v1
 GOVULNCHECK_PACKAGE ?= golang.org/x/vuln/cmd/govulncheck@v1
 ACTIONLINT_PACKAGE ?= github.com/rhysd/actionlint/cmd/actionlint@v1
 GOPLS_PACKAGE ?= golang.org/x/tools/[email protected]
+GOPLS_MODERNIZE_PACKAGE ?= golang.org/x/tools/gopls/internal/analysis/modernize/cmd/[email protected]
 
 DOCKER_IMAGE ?= gitea/gitea
 DOCKER_TAG ?= latest
@@ -231,6 +232,7 @@ clean: ## delete backend and integration files
 
 .PHONY: fmt
 fmt: ## format the Go code
+	@$(GO) run $(GOPLS_MODERNIZE_PACKAGE) -fix ./...
 	@GOFUMPT_PACKAGE=$(GOFUMPT_PACKAGE) $(GO) run build/code-batch-process.go gitea-fmt -w '{file-list}'
 	$(eval TEMPLATES := $(shell find templates -type f -name '*.tmpl'))
 	@# strip whitespace after '{{' or '(' and before '}}' or ')' unless there is only