Merge "Feat: Add job to build ubuntu-20.04 devstack image"

diff --git a/packer/common-packer b/packer/common-packer
index 09cb3bc..c999f1f 160000 (submodule)
--- a/packer/common-packer
+++ b/packer/common-packer
@@ -1 +1 @@
-Subproject commit 09cb3bcf48185afdc5af0a548be904491ae215de
+Subproject commit c999f1fa39bfd954cdc2d8aa85b6c5c972842f8f