Fix gosec, govet, and errorlint linter errors

Co-authored-by: Junie <junie@jetbrains.com>

internal/acme/server.go

@@ -15,12 +15,12 @@ import (
 
 // Handler implements the ACME protocol for a single CA mount.
 type Handler struct {
-	mount   string
 	barrier barrier.Barrier
 	engines *engine.Registry
 	nonces  *NonceStore
-	baseURL string
 	logger  *slog.Logger
+	mount   string
+	baseURL string
 }
 
 // NewHandler creates an ACME handler for the given CA mount.