rescan the repositories in testListFiles() (#4286)

fixes #4285

Author: vladak

opengrok-web/src/test/java/org/opengrok/web/api/v1/controller/ProjectsControllerTest.java

@@ -18,7 +18,7 @@
  */
 
 /*
- * Copyright (c) 2018, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2018, 2023, Oracle and/or its affiliates. All rights reserved.
  * Portions Copyright (c) 2019, 2020, Chris Fraire <[email protected]>.
  */
 package org.opengrok.web.api.v1.controller;
@@ -645,7 +645,7 @@ void testListFiles() throws IOException, IndexerException {
 
         Indexer.getInstance().prepareIndexer(
                 env,
-                false, // don't search for repositories
+                true, // don't search for repositories
                 true, // add projects
                 // don't create dictionary
                 new ArrayList<>(), // subFiles - needed when refreshing history partially