Fix static call for non-static method in bin/importPdoMetadata.php (#1969)

* Fix static call for non-static method in bin/importPdoMetadata.php

* Revert "Fix static call for non-static method in bin/importPdoMetadata.php"

* Fix static call for non-static method in bin/importPdoMetadata.php

* Remove comment

---------

Co-authored-by: Tim van Dijen <tvdijen@gmail.com>

bin/importPdoMetadata.php

@@ -4,9 +4,12 @@
 declare(strict_types=1);
 
 $baseDir = dirname(__FILE__, 2);
-
 require_once $baseDir . DIRECTORY_SEPARATOR . 'src' . DIRECTORY_SEPARATOR . '_autoload.php';
-require_once \SimpleSAML\Utils\Config::getConfigDir() . DIRECTORY_SEPARATOR . 'config.php';
+
+// This is the config dir of the SimpleSAMLphp installation
+$configDir = (new \SimpleSAML\Utils\Config())->getConfigDir();
+
+require_once $configDir . DIRECTORY_SEPARATOR . 'config.php';
 
 # Iterate through configured metadata sources and ensure
 # that a PDO source exists.