Update go version

Makefile

@@ -5,16 +5,18 @@ CMD ?= raven
 
 GO          := go
 GOFMT       := go fmt
+GOFIX       := $(GO) fix
 GOVET       := go vet
 GOIMPORTS   := go tool goimports
 DEADCODE    := go tool deadcode
+STATICCHECK := go tool staticcheck
 GOVULNCHECK := go tool govulncheck
 
 BUILDFLAGS := -buildvcs=true
 PLATFORMS  := linux/amd64
 
-.PHONY: all build build-all buildinfo check clean deadcode deps fmt help \
-        imports install lint run test tidy tools uninstall verify vet \
+.PHONY: all build build-all buildinfo check clean deadcode deps fix fmt help \
+        imports install lint run staticcheck test tidy tools uninstall verify \
 	vulncheck $(CMDS)
 
 ## Build all binaries (default target)
@@ -66,8 +68,12 @@ buildinfo: build
 test:
 	$(GO) test -cover -race ./...
 
-## Run all linters (fmt, vet, imports, deadcode, vulncheck)
-lint: fmt vet imports deadcode vulncheck
+## Run all linters (fix, fmt, imports, vet, deadcode, vulncheck, staticcheck)
+lint: fix fmt imports vet deadcode vulncheck staticcheck
+
+## Automatically fix code for newer Go versions
+fix:
+	$(GOFIX) ./...
 
 ## Format code using go fmt
 fmt:
@@ -89,6 +95,10 @@ deadcode:
 vulncheck:
 	$(GOVULNCHECK) ./...
 
+## Run staticcheck
+staticcheck:
+	$(STATICCHECK) ./...
+
 ## Run integration checks (alias for lint)
 check: lint
 
@@ -108,6 +118,7 @@ verify:
 tools:
 	go get -tool golang.org/x/tools/cmd/deadcode@latest
 	go get -tool golang.org/x/tools/cmd/goimports@latest
+	go get -tool honnef.co/go/tools/cmd/staticcheck@latest
 	go get -tool golang.org/x/vuln/cmd/govulncheck@latest
 
 ## Run the default binary (use ARGS="..." to pass arguments)