Fixed the issue, added unit test

Author: shiftedreality

app/code/Magento/AwsS3/Driver/AwsS3.php

@@ -524,6 +524,10 @@ public function getRealPath($path)
      */
     public function rename($oldPath, $newPath, DriverInterface $targetDriver = null): bool
     {
+        if ($oldPath === $newPath) {
+            return true;
+        }
+
         try {
             $this->adapter->move(
                 $this->normalizeRelativePath($oldPath, true),

app/code/Magento/AwsS3/Test/Unit/Driver/AwsS3Test.php

@@ -496,4 +496,21 @@ public function testCreateDirectory(): void
 
         self::assertTrue($this->driver->createDirectory(self::URL . 'test/test2/'));
     }
+
+    public function testRename(): void
+    {
+        $this->adapterMock->expects(self::once())
+            ->method('move')
+            ->with('test/path', 'test/path2');
+
+        self::assertTrue($this->driver->rename('test/path', 'test/path2'));
+    }
+
+    public function testRenameSameDestination(): void
+    {
+        $this->adapterMock->expects(self::never())
+            ->method('move');
+
+        self::assertTrue($this->driver->rename('test/path', 'test/path'));
+    }
 }