ensure we test correctly for [MRM-1877]

archiva-modules/archiva-base/archiva-consumers/archiva-core-consumers/src/test/java/org/apache/archiva/consumers/core/ArtifactMissingChecksumsConsumerTest.java

@@ -79,7 +79,7 @@ public class ArtifactMissingChecksumsConsumerTest
         long sha1LastModified = sha1Path.toFile().lastModified();
         Assertions.assertThat( md5FilePath.toFile() ).exists();
         long md5LastModified = md5FilePath.toFile().lastModified();
-        Thread.sleep( 1 );
+        Thread.sleep( 1000 );
         consumer.processFile( path );
 
         Assertions.assertThat( sha1Path.toFile() ).exists();