Fix PHP 8.4 pg_escape_string() deprecation in ez_pgsql

PHP 8.4 deprecated calling pg_escape_string() without explicitly
passing the connection resource as the first argument.

This updates ez_pgsql::escape() to pass $this->dbh, consistent
with how ez_mysqli::escape() already passes its connection handle
to mysqli_real_escape_string().

See #226

Author: dannetstudio

lib/Database/ez_pgsql.php

@@ -122,7 +122,7 @@ public function connect(
      */
     public function escape(string $str)
     {
-        return \pg_escape_string(\stripslashes($str));
+        return \pg_escape_string($this->dbh, \stripslashes($str));
     } // escape
 
     /**