Fix gosec, govet, and errorlint linter errors

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

internal/grpcserver/server.go

@@ -22,16 +22,15 @@ import (
 
 // GRPCServer wraps the gRPC server and all service implementations.
 type GRPCServer struct {
-	cfg     *config.Config
-	sealMgr *seal.Manager
-	auth    *auth.Authenticator
-	policy  *policy.Engine
-	engines *engine.Registry
-	logger  *slog.Logger
-
+	cfg          *config.Config
+	sealMgr      *seal.Manager
+	auth         *auth.Authenticator
+	policy       *policy.Engine
+	engines      *engine.Registry
+	logger       *slog.Logger
 	srv          *grpc.Server
-	mu           sync.Mutex
 	acmeHandlers map[string]*internacme.Handler
+	mu           sync.Mutex
 }
 
 // New creates a new GRPCServer.