[releng] Update to Sirius version to 6.4.0-S20200921-043506

Change-Id: I581a53c29e0a534758d3bfc0c17725c3e508c768
Signed-off-by: Laurent Redor <laurent.redor@obeo.fr>
2 files changed
tree: b6fb13507fb7944605c157e2d462a3c29fbd595b
  1. features/
  2. plugins/
  3. releng/
  4. tests/
  5. .gitignore