Fix unit tests

Author: tvdijen

src/Aggregator.php

@@ -8,9 +8,9 @@
 use DateTimeImmutable;
 use DateTimeZone;
 use Exception;
-use SimpleSAML\Assert\Assert;
 use SimpleSAML\Configuration;
 use SimpleSAML\Logger;
+use SimpleSAML\SAML2\Assert\Assert;
 use SimpleSAML\SAML2\Constants as C;
 use SimpleSAML\SAML2\XML\md\EntitiesDescriptor;
 use SimpleSAML\SAML2\XML\md\EntityDescriptor;