upload_simics: replace "next" with build-id 6362

Author: syssimics

RELEASENOTES-1.4.md

@@ -355,3 +355,4 @@
   ```
   The bugfix is opt-in, because an immediate bugfix would risk breaking existing builds; the error will only be reported when the flag `--no-compat=broken_unused_types` is passed to DMLC. This flag will be automatically enabled in Simics 8.
 - `release 7 7063`
+- `release 6 6362`