fix: update lego.

vendor/github.com/xenolf/lego/lego/client.go

@@ -53,9 +53,10 @@ func NewClient(config *Config) (*Client, error) {
 	solversManager := resolver.NewSolversManager(core)
 
 	prober := resolver.NewProber(solversManager)
+	certifier := certificate.NewCertifier(core, prober, certificate.CertifierOptions{KeyType: config.Certificate.KeyType, Timeout: config.Certificate.Timeout})
 
 	return &Client{
-		Certificate:  certificate.NewCertifier(core, config.KeyType, prober),
+		Certificate:  certifier,
 		Challenge:    solversManager,
 		Registration: registration.NewRegistrar(core, config.User),
 		core:         core,

vendor/github.com/xenolf/lego/lego/client_config.go

@@ -35,22 +35,30 @@ const (
 )
 
 type Config struct {
-	CADirURL   string
-	User       registration.User
-	KeyType    certcrypto.KeyType
-	UserAgent  string
-	HTTPClient *http.Client
+	CADirURL    string
+	User        registration.User
+	UserAgent   string
+	HTTPClient  *http.Client
+	Certificate CertificateConfig
 }
 
 func NewConfig(user registration.User) *Config {
 	return &Config{
 		CADirURL:   LEDirectoryProduction,
 		User:       user,
-		KeyType:    certcrypto.RSA2048,
 		HTTPClient: createDefaultHTTPClient(),
+		Certificate: CertificateConfig{
+			KeyType: certcrypto.RSA2048,
+			Timeout: 30 * time.Second,
+		},
 	}
 }
 
+type CertificateConfig struct {
+	KeyType certcrypto.KeyType
+	Timeout time.Duration
+}
+
 // createDefaultHTTPClient Creates an HTTP client with a reasonable timeout value
 // and potentially a custom *x509.CertPool
 // based on the caCertificatesEnvVar environment variable (see the `initCertPool` function)