used #[\SensitiveParameter] to mark sensitive parameters

Author: dg

src/Mail/DkimSigner.php

@@ -33,7 +33,9 @@ class DkimSigner implements Signer
 	public function __construct(
 		private string $domain,
 		private string $selector,
+		#[\SensitiveParameter]
 		private string $privateKey,
+		#[\SensitiveParameter]
 		private ?string $passPhrase = null,
 		private array $signHeaders = self::DefaultSignHeaders,
 	) {

src/Mail/SmtpMailer.php

@@ -35,6 +35,7 @@ class SmtpMailer implements Mailer
 	public function __construct(
 		private string $host,
 		private string $username,
+		#[\SensitiveParameter]
 		private string $password,
 		private ?int $port = null,
 		private ?string $encryption = null,