Restore deleted use statement

src/Tracing/Doctrine/DBAL/TracingDriver.php

@@ -5,6 +5,7 @@
 namespace Sentry\SentryBundle\Tracing\Doctrine\DBAL;
 
 use Doctrine\DBAL\Connection;
+use Doctrine\DBAL\Driver\API\ExceptionConverter;
 use Doctrine\DBAL\Driver as DBALDriver;
 use Doctrine\DBAL\Driver\DriverException as LegacyDriverExceptionInterface;
 use Doctrine\DBAL\Driver\ExceptionConverterDriver as ExceptionConverterDriverInterface;