Parallel multipart download (#6589)

* Parallel split for multipart GetObject File Download (#6425)

Parallel split for multipart GetObject File Download

* merge branch 'olapplin/large-object-merge' into 'feature/master/large-object-dl'

* fix merge conflict resolution

* Add completed part log.
Make Sonar happy
- remove unused fields
- remove unused test imports and comments
- uncomment test
- add missing asserts

* checkstyle

* checkstyle

* minor version bump to 2.40.0 (#6597)

* Revert "minor version bump to 2.40.0 (#6597)"

This reverts commit e8a3070.

* minor version bump to 2.40.0

Author: L-Applin

.changes/2.39.0.json renamed to .changes/2.39.x/2.39.0.json

@@ -0,0 +1,6 @@
+{
+    "type": "feature",
+    "category": "S3",
+    "contributor": "",
+    "description": "Add support for parallel download for individual part-get for multipart GetObject in s3 async client and Transfer Manager"
+}

.changes/2.39.1.json renamed to .changes/2.39.x/2.39.1.json

@@ -20,7 +20,7 @@
     <parent>
         <artifactId>archetypes</artifactId>
         <groupId>software.amazon.awssdk</groupId>
-        <version>2.39.7-SNAPSHOT</version>
+        <version>2.40.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>