added info about upgraded rclone version for 3.12

Author: ansoboleva

site/content/4.0/release-notes/version-3.12/whats-new-in-3-12.md

@@ -1197,3 +1197,10 @@ Startup options to enable transparent compression of the data that is sent
 between a client tool and the ArangoDB server have been added. See the
 [Server options](#transparent-compression-of-requests-and-responses-between-arangodb-servers-and-client-tools)
 section above that includes a description of the added client tool options.
+
+## Internal changes
+
+### Upgraded bundled library versions
+
+For ArangoDB 3.12, the bundled version of rclone is 1.65.2. Check if your
+rclone configuration files require changes.