Fixes folder timestamps being updated before copying files into them

* When updating the timestamps were requested, scanCopy first set the times and then copied content into the destination folder. On certain platforms, copying files into a folder updates its "Last Access Time" and that overwrites the just set timestamps. This PR, makes sure the timestamps are set only after copying the content.

Signed-off-by: Miki <amoo_miki@yahoo.com>

CHANGELOG.md

@@ -69,6 +69,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Temporary workaround for task-kill exceptions on Windows when it is passed a pid for a process that is already dead ([#2842](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/2842))
 - [Vis Builder] Fix empty workspace animation does not work in firefox ([#2853](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/2853))
 - Bumped `del` version to fix MacOS race condition ([#2847](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/2873))
+- [Build] Fixed "Last Access Time" not being set by `scanCopy` on Windows ([#2964](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/2964))
 
 ### 🚞 Infrastructure
 

src/dev/build/lib/scan_copy.ts

@@ -107,13 +107,13 @@ export async function scanCopy(options: Options) {
       await copyFileAsync(record.absolute, record.absoluteDest, Fs.constants.COPYFILE_EXCL);
     }
 
-    if (time) {
-      await utimesAsync(record.absoluteDest, time, time);
-    }
-
     if (record.isDirectory) {
       await copyChildren(record);
     }
+
+    if (time) {
+      await utimesAsync(record.absoluteDest, time, time);
+    }
   };
 
   await mkdirp(destination);