Fix optional parameters

Author: TavoNiievez

src/Codeception/Lib/Driver/Db.php

@@ -78,7 +78,7 @@ public static function getProvider($dsn): string
      * @see https://www.php.net/manual/en/pdo.construct.php
      * @see https://www.php.net/manual/de/ref.pdo-mysql.php#pdo-mysql.constants
      */
-    public function __construct(string $dsn, string $user, string $password, array $options = null)
+    public function __construct(string $dsn, string $user = null, string $password = null, array $options = null)
     {
         $this->dbh = new PDO($dsn, $user, $password, $options);
         $this->dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

src/Codeception/Lib/Driver/Sqlite.php

@@ -14,7 +14,7 @@ class Sqlite extends Db
 
     protected string $filename = '';
 
-    public function __construct(string $dsn, string $user, string $password, array $options = null)
+    public function __construct(string $dsn, string $user = null, string $password = null, array $options = null)
     {
         $filename = substr($dsn, 7);
         if ($filename === ':memory:') {